In Puerto Rico, organizations that seek to be recognized as political parties must gather roughly 100,000 endorsing petitions, each signed by a registered voter and sworn to before a notary public. Since only a lawyer can become a notary in Puerto Rico, there are fewer than 8,000 notaries in the entire commonwealth — and notarial services do not come cheap. Chafing under these restrictions, a nascent political party — the Partido Acción Civil *231 (the Party) — challenged various aspects of the law, including the lawyer-notarization requirement, in the local courts. The Party lost.
Plaintiff-appellee José Emilio Pérez-Guzmán (Pérez), a member of the Party who had not participated in the earlier suit, remained dissatisfied with the lawyer-notarization requirement. He sued the members of the Puerto Rico State Elections Commission (the Commission) in the federal district court. The district court rejected a proffered res judicata defense and found that the lawyer-notarization requirement violated the plaintiffs First Amendment rights.
Pérez-Guzmán v. Gracia,
The questions raised by these appeals are novel and important. The res judicata issue involves the extent to which a judgment against an association can preclude a later action by a member of that association. The constitutional issue pits the government’s interest in regulating elections against an individual’s interests in electoral participation and freedom of association. Having worked our way through both issues, we conclude, as did the district court, that the instant action is not pretermitted by the prior judgment and that the lawyer-notarization requirement unduly burdens First Amendment rights. Consequently, we affirm the judgment below.
I. BACKGROUND
The Party is an unincorporated association seeking to be registered by petition as a political party, and Pérez is among its members. Under commonwealth law, a “Party by Petition”
— Shall be any group of citizens who, desiring to appear on the electoral ballot of a general election, shall register as a political party, on or before June 1 of the election year, by filing with the Commission sworn petitions to such effect, before notary publics duly admitted to the practice of notary, pursuant to the provisions of the Notary Act in effect, who shall collect from the Electoral Commission a fee of one (1) dollar for each valid, notarized petition signed by a number of electors of no less than five (5) percent of the total votes cast for all candidates for the office of Governor in the preceding general election.
P.R. Laws Ann. tit. 16, § 3101(3) (2000). Because more than 2,000,000 votes were cast in the 2000 gubernatorial election, a group that currently desires to register a political party must amass in excess of 100,000 notarized petitions. Each petition must be signed and sworn to before a notary public and filed with the Commission within seven days after notarization. Id. § 3102.
There is nothing wrong with a state demanding that a would-be political party demonstrate a “significant modicum of support” before gaining access to the ballot,
1
Jenness v. Fortson,
Given this peculiar collocation of circumstances, it is not surprising that controversy has surrounded Puerto Rico’s notarization requirement. We reviewed the procedural history of the Party’s challenge to it in an earlier opinion,
see Cruz v. Melecio,
On October 6, 1998, the Party filed an action in the Puerto Rico Court of First Instance against the Commission and others. Its complaint averred, inter alia, that the lawyer-notarization requirement transgressed the Constitution. The court granted summary judgment in favor of the defendants; the Puerto Rico Circuit Court of Appeals upheld the judgment; the Puerto Rico Supreme Court also affirmed,
see Civil Action Party v. Commonwealth,
Just two days before the intermediate appellate court ruled, fourteen Party members filed an action for declaratory and injunctive relief in Puerto Rico’s federal district court. The action raised essentially the same federal constitutional claims, including the claim that the lawyer-notarization requirement violated the plaintiffs’ rights to free speech and association, to participate in the political process, to vote, and to enjoy equal protection of the laws.
Cruz,
An appeal ensued. In it, we first addressed the potential applicability of res judicata. We held that the defense did not apply because the commonwealth court proceedings were, at that point, still in progress. Id. at 20-21. We then determined that the district court had erred in dismissing the action for failure to state a potentially viable claim. Id. at 22. The complaint had alleged facts which, if true, “tend[ed] to support the appellants’ claims that the notarization requirement and seven-day [filing] deadline unduly burden ballot access.” Id. Thus:
If ... the appellants can prove that notarization is prohibitively expensive or otherwise difficult to achieve (as the complaint avers), then the Commission will have to show that the notarization requirement is narrowly drawn to advance a compelling governmental interest. This showing requires the Commission to come forward with proof. Whether it ultimately can succeed in this endeavor is a sufficiently open question that we cannot conclude, on the pleadings, that no set of facts exists under which the appellants might prevail.
Id. (footnote and internal citation omitted). Accordingly, we vacated the order of dismissal.
Still, we did not allow the case to proceed unabated, but, rather, instructed the district court to stay further proceedings pending the Puerto Rico Supreme Court’s decision. Id. at 25. Among the factors we found “highly relevant to the calculus of abstention” was our belief that “the appel *233 lants [had] filed the present suit in an effort to detour around an unfavorable judgment of the commonwealth trial court.” Id. at 24. After the Puerto Rico Supreme Court affirmed the judgment against the Party and the United States Supreme Court denied certiorari, the district court dismissed Cruz on res judicata grounds. The Cruz plaintiffs did not appeal, and that appeared to be the end of the matter.
Appearances can be deceiving. The next year, Pérez filed this action challenging the lawyer-notarization requirement (but not the seven-day filing requirement). In relevant part, the complaint sought a declaration that the lawyer-notarization requirement, P.R. Laws Ann. tit. 16, § 3101(8), violated Pérez’s rights to freedom of speech and equal protection. It also prayed for an injunction prohibiting the defendants from enforcing section 3101(3) and the corresponding regulations.
After an evidentiary hearing, the district court entered an order “declaring the requirement ... that petitions for new political parties be notarized by a lawyer to be in violation of the First Amendment of the Constitution.”
Pérez-Guzmán,
In a separate (unpublished) order, the court rejected the asserted res judicata defense. The court found no privity between Pérez and the Party because the record did not show that Pérez had in any way participated in or controlled the Party’s case. Indeed, the court found “no evidence” that Pérez was even a Party member during the currency of the earlier litigation.
Following the entry of a judgment declaring section 3101(3) unconstitutional, these timely appeals eventuated. In an abundance of caution, we stayed the execution of the judgment and expedited appellate review. We now confront the substance of the appeals. Because the res judicata defense, if successful, would end our inquiry, we start there.
II. RES JUDICATA
The applicability of the doctrine of res judicata presents a question of law over which we exercise plenary review,
See Gonzalez v. Banco Cent. Corp.,
In Puerto Rico, the doctrine of res judicata is embedded in the Civil Code:
In order that the presumption of the res adjudicata may be valid in another suit, it is necessary that, between the case decided by the sentence and that in which the same is invoked, there be the most perfect identity between the things, causes, and persons of the litigants, and their capacity as such.
P.R. Laws Ann. tit. 31, § 3343 (1990). The issue here involves the identity of the parties in the two actions. We know that the requirement of “perfect identity” cannot be taken literally; mere nominal differences will not undermine the preclusive effect of an earlier judgment.
Cruz,
In Cruz, we determined that privity existed between the plaintiffs and the Party (the plaintiff in the original commonwealth court action), stating:
Although the present appellants are not named parties in the commonwealth court proceedings, they are members of the organization that is the plaintiff there and they control that litigation. This type of privity suffices for res judi-cata purposes.
Before us, the appellants engage in a largely didactic exercise, asserting that Cruz stands for the proposition that any member of a political party has control over litigation brought by that party (and, therefore, that the party is in privity with every one of its members). But this assertion rests on a porous foundation—the notion that Cruz means something other than what it says. We reject that notion. Cruz required proof of control as a building block in the showing of privity, and without such proof there would have been no privity in the circumstances of that case.
This action is at a considerable remove. Unlike the
Cruz
plaintiffs, Pérez steadfastly disclaims any exercise of control over the original case. In the absence of an admission, the appellants, as the proponents of the res judicata defense, have the burden of establishing a factual basis for that defense.
Banco Cent.,
The appellants’ first fallback argument is that, even absent control, Pérez’s mem *235 bership in the Party, his commonality of interests with the Party and its other members, and his desire to register the Party combine to establish privity as a matter of law. The Party, so this argument goes, is in privity with every one of its members because it sued to advance their associational rights. To a person, the members stood to gain if the Party had prevailed; thus, all of them should be bound by the Party’s loss.
This argument is misguided. Concepts of privity do not grow more expansive when a political party or its members raise First Amendment claims. After all, the fact that First Amendment rights are at stake ought to weigh against, not for, a finding of preclusion.
Cf. Richards v. Jefferson County,
At any rate, the question of whether an individual should be bound by an association’s actions in a prior suit is distinct from whether, in practice, the right at issue has an associational component. As we explained in
Cruz, “[i]ndividuals
have constitutionally protected interests in free association and electoral participation, including the formation of new political parties.”
This might have been a closer case if the appellants had proven that the Party, in the manner, say, of certain labor unions or trade associations, served generally as the duly constituted representative of its members in litigation affecting common interests.
See, e.g., Gen. Foods Corp. v. Mass. Dep’t of Pub. Health,
*236
This lack of authorization is especially significant because the Party is a jural entity entitled to sue in its own right. Unlike the trade association in
General Foods,
From what we have said, it should be evident that the commonality of First Amendment interests between a political party and its members is not itself enough to support a finding of privity.
See Griffin v. Burns,
The appellants next argue for a determination of privity based on the doctrine of virtual representation — a term that is used as a synonym for
“de facto
representation” based on an identity of interests between a party to the earlier suit and a nonparty,
Banco Cent.,
Even absent this procedural default, the argument would be unavailing. The record here is barren of any evidence that would support a finding of virtual representation. In particular, there is no proof that either Pérez or the Party, in the institution of this action, were engaged in “tactical maneuvering designed unfairly to exploit technical nonparty status in order to obtain multiple bites of the litigatory apple.”
Banco Cent.,
The authorities relied upon by the appellants in support of their various res judica *237 ta theories are inapposite here. We briefly discuss the two principal decisions. 4
In
Tahoe-Sierra Preservation Council v. Tahoe Regional Planning Agency,
So too Tyus v. Schoemehl, 93 F,3d 449 (8th Cir.1996), in which the aldermen-plaintiffs filed a second action while the first was pending, “simply adding new plaintiffs.” Id. at 457. The court found unmistakable evidence of “tactical maneuvering” such that not applying preclusion would have “allow[ed] various members of a coordinated group to bring separate lawsuits in the hope that one member of the group would eventually be successful, benefiting the entire group.” Id. As we have observed, however, there is no evidence that Pérez is part of a coordinated strategy to circumvent a prior judgment. The appellants simply have not proven collusion.
With the facts and the law arrayed against them, the appellants shift their emphasis to policy grounds. They contend that a rule of blanket preclusion is necessary to promote finality and forestall ma-. nipulative practices, including claim-splitting, forum-shopping, and serial litigation. But we are skeptical of the value of a mechanical rule, and there is no sign that any manipulation occurred in this case. The appellants have not shown that Pérez is a puppet dancing on a string pulled by the Party or that the Party has orchestrated a strategy of serial attacks on the lawyer-notarization requirement. In lieu of proof, the appellants apparently would have us infer guilt by association. We will not do so.
Relatedly, the appellants predict disaster if blanket preclusion is rejected. They insinuate that members of a political party would have no incentive to join a pending action, for they would benefit if the party won but would be free to litigate the point if the party lost. Endless litigation would be the norm.
This prediction is much too gloomy. For one thing, it overlooks the salutary effect of the doctrine of stare decisis on repetitive litigation. Perhaps more important, it overlooks the principle that “[t]he law does not impose upon any person absolutely entitled to a hearing the burden of voluntary intervention in a suit to which he is a stranger.”
Chase Nat’l Bank v. Norwalk,
That ends this aspect of the matter. As we have said, Puerto Rico law supplies the rule of decision as to the efficacy of the res judicata defense in this case. The appellants have not persuaded us that the Puer-to Rico courts would find privity in these circumstances.
See, e.g., Montalvo-Huertas v. Rivera-Cruz,
III. THE MERITS
This brings us to the heart of the matter: the interaction between the lawyer-notarization requirement and the First Amendment. We review de novo the trial court’s elucidation of First Amendment standards and its application of those standards to the discerned facts.
Globe Newsp. Co. v. Beacon Hill Arch’l Comm’n,
Like any other citizen, Pérez has “constitutionally protected interests in free association and electoral participation, including the formation of new political parties.”
Cruz,
We do not mean to minimize the schizophrenic nature of election campaigns,
*239
which are as much a means of disseminating ideas as a means of attaining political objectives.
See Ill. State Bd. of Elections v. Socialist Workers Party,
Plotting that line calls for a careful reconciliation of competing centrifugal and centripetal forces. The rigorousness of the ensuing judicial inquiry depends upon the extent to which the challenged regulation burdens First Amendment rights.
Burdick v. Takushi,
We approach the question of severity by looking first at its theoretical underpinnings. Traditionally, the act of circulating a petition has been viewed as “a one-on-one communication.”
Buckley v. Am. Const. Law Found.,
This triangulation limits the efficacy of petition circulators in their own right. No matter how persuasive a circulator might be in a face-to-face conversation, he cannot seal the deal then and there. The final exchange in the interactive communication- — the voter’s official endorsement of the fledgling party — cannot occur unless and until a notary is present. The historic role of the circulator is necessarily diminished.
In this case, Pérez plainly labored under this heavy yoke. He testified without contradiction that the lawyer-notarization requirement greatly hampered his efforts to gather signatures because, in addition to convincing voters that a new political party was needed, he also had to convince them to repair to an attorney’s office. When he tried to recruit others to help in the circulation of petitions, those whom he could interest were “just common people,” not notaries. The district court credited this testimony.
*240
The stringency of the restriction is aggravated because the indispensable third person in the triangulated relationship— the notary — may prove hard to find. In most jurisdictions, it is neither impractical nor burdensome for party members to become notaries so that they may verify the petitions that they circulate.
See Am. Party of Tex.,
Nor is this a purely theoretical difficulty. The district court found that Puerto Rico has only 8,000 lawyer-notaries, more or less.
See Pérez-Guzmán,
Last — but far from least — someone must pay the freight. 7 The district court determined that the average cost for notarizing a simple document signed at a lawyer’s office is between $15 — $20; the cost if the lawyer travels to the site of the signing escalates to $50-$60; those who would form a party by petition need to collect a minimum of 100,000 signatures; and, accordingly, the lawyer-notarization requirement adds at least $1,500,000 to the cost of a successful petition drive. Id. at 391-92. The court further found that this was “an unreasonably high price tag for an individual who is seeking to exercise his constitutional rights.” Id. at 392 (footnote omitted).
These findings are wholly supportable. 8 Indeed, the court’s cost estimates may be conservative because, as a practical matter, a group attempting to form a party by petition will need to gather a surplus of signatures (as challenges likely will result in a number of invalidations). The court’s findings make manifest that the task of registering a new political party is one of daunting proportions. We hold, therefore, that the lawyer-notarization requirement imposes a severe restriction on Pérez’s ability to register a new political party, and, in turn, on his right to access the ballot.
*241
The appellants’ only direct rejoinder is to remind us that the Puerto Rican Renewal Party (PRRP) managed to register for the 1984 election as a party by petition. But no other party has duplicated that feat in the quarter-century since section 3101(3) was enacted,
see CAP I,
Off. Trans, at 9, so this is hardly an indication that the lawyer-notarization requirement is a piece of cake.
Cf. Storer,
Apart from this glancing reference to the PRRP’s success, the appellants do hot seriously dispute the severe impact of the lawyer-notarization requirement. Instead, they attempt to confess and avoid. Their effort tracks three main avenues.
First, the appellants propose that a reviewing court should afford Puerto Rico wide latitude vis-a-vis the challenged regulation because the Supreme Court, in
American Party of Texas
and
Jenness,
upheld other notarization and petitioning requirements as reasonable. This proposition overlooks the fact that both cases were decided before the Supreme Court crystallized its current standard of inquiry in cases such as
Burdick,
Although the Court sanctioned a notarization requirement in
American Party of Texas,
it gave no indication that Texas limited notarial status to members of the bar. Moreover, the relevant numerical threshold was one percent of the active electorate — not five percent — and bulk notarization seems to have been available.
These differences make it clear that the appellants are comparing plums to pomegranates: whereas American Party of Texas dealt with a claim that a garden-variety notarization requirement constituted a severe restriction and Jenness dealt with a claim that a petitioning requirement constituted a severe restriction, the case before us turns on the synergy among three discrete factors: the five percent numerical requirement; the requirement that each signature be individually notarized; and the restriction of notarial practice in Puerto Rico to lawyers. It is this synergy that places section 3101(3) beyond the pale, for it transforms the dynamics of participation in the electoral process.
The appellants’ second avenue for marginalizing the severity of the imposed restriction involves drawing a distinction between the act of seeking support from the voter (which anyone can do at any time and place) and the act of authenticating *242 the voter’s signature. The appellants argue that the lawyer-notarization requirement comes into play only after the voter has agreed to subscribe a petition and, thus, does not have First Amendment implications. The requirement merely “regulate[s] the mechanics of the electoral process,” not “the communicative aspect of petitioning.” CAP II, Off. Trans, at 7.
This distinction is artificial. Petition cir-culators — persons like Pérez — are free only in theory “to convey their political message through whatever means they may deem convenient.” Id. The notarization requirement’s looming presence forces the circulator to structure his communications and choose his target audiences with that requirement in mind. Pérez, like most persons, is not a notary. In principle, he is free to • go from door to door soliciting support for the Party, but in practice his rate of return will suffer because he cannot gather endorsing signatures on the spot. The record makes clear not only that some voters who would be willing to sign petitions are not willing to venture to a law office but also that Pérez faces enormous difficulties in persuading notaries to accompany him in search of prospects. Given the reality of events, the lawyer-notarization requirement burdens petitioning by causing the utility of a communication to vary with its setting and ■with the qualifications of the circulator.
It would serve no useful purpose to dwell upon this line of argument. The short of it is that a state cannot separate petitioning into two steps, close off the second step to all but a tiny professional class, and then ignore the effects of that restriction.
See Buckley,
The appellants’ third avenue relies upon a “causation” argument which, if credited, would make it unnecessary for us to reach the question of severity. Under this rubric, they note that Pérez collected a total of fewer than 80 signatures (only 19 of which were actually presented to the Commission). Based on this “meager” effort, they fault the district court for failing to address the issue of whether Pérez had made a diligent effort to obtain the requisite number of petitions. In their view, the absence of due diligence should bar any claim that the lawyer-notarization requirement “caused” Pérez’s inability to register the Party.
The appellants derive this due diligence condition from a misreading of
Storer.
In that case, the Supreme Court remanded for further factfinding as to whether, “in the context of California politics ... a reasonably diligent independent candidate [could] be expected to satisfy the signature requirements” imposed by a state statute regulating the filing of nomination papers by independent candidates.
That ends this phase of our analysis. We conclude, without serious question, that Puerto Rico’s lawyer-notarization requirement imposes a severe burden on Pérez’s rights.
We turn next to the task of “identify[ing] and evaluating] the precise interests put forward by the State as justifications for the burden imposed by its rule.”
Anderson,
We do not gainsay Puerto Rico’s robust interest in protecting the integrity of its election processes.
See Timmons,
The appellants have identified only one such interest: preventing election fraud. They assert that notarization is necessary to “remedfy] a type of electoral fraud that the Puerto Rico Legislature found to hafye] been pervasive.” Appellants’ Reply Br. at 39. The Puerto Rico Supreme Court echoed this sentiment. It declared that notarization “serves a compelling state interest in guaranteeing the integrity of the electoral process, given the history of electoral fraud and corruption experienced in Puerto Rico.” CAP I, Off. Trans, at 15. In this regard, the court singled out “[t]he popular practice of manipulating the voting lists.” Id.
Even though we accept the legitimacy of this interest, we must nonetheless mull the extent to which that interest renders
*244
it necessary to burden Pérez’s rights so severely.
See Anderson,
As to the voter, the appellants contend that notarization gives some meaningful assurance that voters’ signatures are authentic. “The [voter] takes oath to that fact and experience has shown that many people take their oaths seriously.”
Libertarian Party of Va. v. Davis,
We turn next to petition circulators. The appellants offer no developed argumentation to the effect that notarization by a lawyer will discourage circulator fraud. We assume that this is a concession.
See United States v. Zannino,
This leaves the notary himself. The Puerto Rico Supreme Court suggested that the lawyer-notarization requirement “allows for the imposition of sanctions for any illegal act committed by the person before whom the petition is sworn to.” CAP I, Off. Trans, at 14 (citations and internal quotation marks omitted). But this rationale does not itself distinguish the lawyer-notary from any other person who may be authorized by the Commission to verify petitions. One need be neither a lawyer nor a notary to be fined or imprisoned for participating in the preparation of fraudulent documents. See, e.g., P.R. Laws Ann. tit. 33, § 4437 (2001). 11
We recognize that “notarial practice is strictly regulated” in Puerto Rico; that notaries are “the only officers vested by
*245
the [Puerto Rico] Supreme Court with the authority to guarantee ... the authenticity of the documents executed before them”; and that “[t]he intervention of a notary establishes a presumption of veracity in all the documents authenticated by him or her.”
CAP I,
Off. Trans, at 15 (citation omitted). But "without some proof that lawyer-notarization is appreciably more effective at preventing petition fraud than non-lawyer verification — and the record contains none — all of this is beside the point. The fact that a state’s asserted interest in preventing electoral fraud is important in the abstract does not create a presumption that its chosen means of regulation will advance that interest.
See Lerman,
In a related vein, the appellants contend that the lawyer-notarization requirement is necessary because a successful petition effort stands to reap a munificent harvest for the Party — at least $600,000 from the Electoral Fund in an election year, $300,000 in a non-election year, and “insider” status for the next four years. See CAP I, Off. Trans, at 9 (noting that “registered parties ... share in the Electoral Fund”); CAP II, Off. Trans, at 9 (explaining that registration also allows a party to “become a part of the government body that governs the electoral process, as a result of which it acquires quasi-public functions”). These facts simply reinforce a proposition to which we already have subscribed, namely, that the state has a compelling interest in preventing the fraudulent registration of political parties. Access to special privileges says nothing about the effectiveness of lawyer-notarization as a means of advancing that interest.
In considering whether a ballot access requirement is narrowly drawn to advance the state’s interest in preventing fraud, the mechanisms that the state already has in place serve as benchmarks.
Norman,
Referring back to a political party’s access to the Electoral Fund and its opportunity to participate as an “insider” in the electoral system for a four-year period, the appellants posit that registration as a political party entails higher stakes than other matters (and, hence, that the use of ad hoc notaries in that context would be especially risky). By this logic, parties by petition are not situated similarly to independent candidates, candidates for major party pri *246 maries, or even groups participating in the plebiscite process. We think that this vastly overstates the matter; it is not obvious to us that, say, the status plebiscite was less important to the future of Puerto Rico than the registration of a new political party. We need not pursue this point, however, because the appellants have not shown that, compared with verification by ad hoc notaries, lawyer-notarization is superior in detecting and deterring petition fraud.
We add, moreover, that the use of ad hoc notaries is not the only feasible safeguard available to the Commission (indeed, the record strongly suggests that notarization may not even be the best means currently employed by the Commission). The Commission checks every petition to ensure that the signature is valid.
Pérez-Guzmán,
In this specialized electoral context, the Commission’s in-house verification procedure compares favorably with lawyer-notarization. As the district court found, a lawyer-notary usually verifies a signature by checking a driver’s license, a passport, or some other identification document.
Pérez-Guzmán,
Let us be perfectly clear. A state is entitled to take a “belt-and-suspenders” approach and put in place multiple mechanisms for ensuring the integrity of its electoral processes. Here, however, the record fails to show that lawyer-notarization adds anything over and above other readily available means of verification. Based in part on the absence of evidence that lawyer-notarization reduces electoral fraud and in part on the array of less restrictive alternatives available to the state (including the feasibility of using non-lawyers as ad hoc notaries and the Commission’s apparent ability to verify every petition in-house), we find the lawyer-notarization requirement broader than necessary to serve the state’s asserted interest. Consequently, the requirement embodied in section 3101(3) cannot survive a First Amendment challenge.
See Norman,
IV. CONCLUSION
We need go no further. For the foregoing reasons, we hold (1) that res judicata does not bar the maintenance of the in *247 stant action, and (2) that the lawyer-notarization requirement is not narrowly drawn to advance a compelling state interest (and, thus, cannot withstand First Amendment scrutiny). We are mindful that our constitutional conclusion differs from that of the Puerto Rico Supreme Court, and we do not lightly part company with so distinguished a tribunal. But it is our responsibility to interpret and apply the Constitution of the United States, and it would be a dereliction of that duty to defer to the views of any state court.
The judgment of the district court is affirmed and the stay previously issued is dissolved.
Notes
. Puerto Rico is the functional equivalent of a state for First Amendment purposes,
see Posadas de P.R. Assocs. v. Tourism Co.,
. In this regard, we note that Pérez’s complaint emphasizes his personal right to circulate and verify party petitions. By contrast, the Party's complaint focused upon "associational, speech, and voting rights under the ballot access doctrine.” CAP I, Off. Trans, at 2. The two theories do not perfectly coincide, and their divergence serves as a reminder that there may be subtle conflicts of interest between an association and its individual members. It is for precisely such reasons that the commentators urge "great care ... before binding all members to an association loss.” 18A Charles Alan Wright, Arthur R. Miller & Edward H. Cooper, Federal Practice and Procedure: Jurisdiction 2d § 4456, at 507-10 (2002).
. The record is unclear about when Pérez himself joined the Party. If the district court is correct that the appellants failed to prove his membership in the Party during the key
*236
phases of the original litigation, it is hard to see how he could be bound by the earlier adjudication.
Cf. Montalvo-Huertas v. Rivera-Cruz,
. The other cases cited by the appellants are so plainly distinguishable as not to warrant discussion.
See, e.g., In re Colonial Mortg. Bankers Corp.,
. What we have written to this point fully disposes of the appellants’ reliance on the so-called Rooker-Feldman doctrine.
See Dist. of Columbia Court of Appeals v. Feldman,
.
We see no principled basis for distinguishing party-petition signature gatherers from the initiative-petition circulators in
Buckley.
The common denominator is that "both seek ballot access.”
. To be sure, the Commonwealth pays notaries a dollar for each notarized petition that the Commission accepts as valid, P.R. Laws Ann. tit. 16, § 3101(3), and "sworn statements given on electoral matters,” including registration petitions, are exempt from the usual tax, id. § 3028; Regulation for the Registration of Parties by Petition, § 3.2 (Jan. 23, 2002). The fact of the matter, however, is that these mild palliatives do not come close to offsetting the high cost of notarization.
. The appellants hypothesize that notaries may be willing to verify petitions en masse at a flat fee, thus reducing overall costs. The only evidentiary support for this hypothesis is the testimony of a single attorney who acknowledged that he might be willing to notarize up to 500 signatures per month — in his office — for $1,000 per month.
See Pérez-Guz-man,
In much the same vein, it is not a satisfactory answer to say that Pérez can recruit notaries who will volunteer their services. His experience has been to the contrary, and the record contains no evidence that attorneys routinely work for free or that fledgling parties can consistently attract lawyers to their cause.
. We recognize that the Puerto Rico Supreme Court gave the Party "an opportunity to show the steps it had taken with regard to its registration process.” CAP II, Off. Trans, at 2. In its own statement of the ballot access doctrine, however, the court recognized that the test of burdensomeness was "whether it would be possible for a reasonably diligent candidate to satisfy the State's requirements,” not whether the Party had been reasonably diligent. CAP I, Off. Trans, at 12. To the extent that the Puerto Rico Supreme Court would treat due diligence as a prerequisite for stating a ballot access claim, we respectfully disagree.
. The appellants have not argued that the formal incidents of notarization, such as the application of the notarial seal or the special status that notaries may enjoy under Puerto Rico law, carry special weight with voters or otherwise influence voters’ decisions about whether to obey the law.
. We are aware that the Puerto Rico Supreme Court stated that "penal statutes enacted to prevent electoral fraud have proved ineffective.”
CAP I,
Off. Trans, at 16 n. 11 (citing
P.S.P. v. Romero Barceló,
. According to the Secretary of the Commission, candidates or groups that wish to use ad hoc notaries must give the Commission a list of functionaries who are willing to act in that capacity. These functionaries need not be lawyers; any bona fide voter may so serve. The Commission then appoints ad hoc notaries from these lists.
. This may represent a changed, circumstance. During the currency of the Party’s case, the commonwealth courts found that the Commission "d[id] not have enough officers to examine the legitimacy of the new parties' endorsement collection process.” CAP I, Off. Trans, at 15.
