OPINION
This case arises out of Herb Lux’s unsuccessful attempt to run for Congress in Virginia’s Seventh Congressional District. In 2010, Lux’s application for ballot placement as an independent candidate was denied due to his failure to comply with the state’s requirement that each petition signature in support of his candidacy be witnessed by a district resident. Lux, and his supporters Stephen Cruse, Andrew Mikel, and Eugene Foret (collectively “plaintiffs”), sued representatives of the Virginia State Board of Elections in their official capacities (collectively “the Board”), urging that the residency requirement violated their First and Fourteenth Amendment rights. The district court dismissed their complaint, relying in large part on our analysis in
Libertarian Party of Virginia v. Davis,
I.
A.
We briefly review the undisputed facts. Under Virginia law, prospective independent candidates for the U.S. House of Representatives (“the House”) must file declarations of candidacy with the State Board of Elections. See Va.Code Ann. § 24.2-505(A). Such candidates must also file petitions in support of their inclusion on the ballot signed by 1000 “qualified voters.” 1 Id. at § 24.2-506. At issue here is section 24.2-506’s additional requirement that each of those signatures be “witnessed by a person who is himself a qualified voter, or qualified to register to vote, for the office for which he is circulating the petition.” Id.
In 2010, Lux tried to run as an independent candidate for Virginia’s Seventh Congressional District’s House seat. Lux is a Virginia resident, but did not live in the Seventh District. As a nonresident of the Seventh District, Lux was not qualified to vote in that district’s House election and was consequently barred by section 24.2-506 from witnessing petition signatures in support of his candidacy. 2
Lux received and read a “candidate packet” that explained the “qualified voter” requirement for petition witnesses. J.A. 196. However, due to “confusion” on his part, he nevertheless personally circulated and witnessed sixty-three petitions in support of his candidacy, and collected approximately 1063 signatures. Id. District residents — including Cruse, Mikel, and Foret — circulated and witnessed an additional fifteen candidate petitions on Lux’s behalf, and collected a total of about 151 signatures. Lux submitted all seventy- *399 eight petitions, as well as his timely declaration of candidacy, to the State Board of Elections on June 8, 2010.
On June 21, the Board sent Lux a letter informing him that, because he did not live in the Seventh District, it would not count any petition signatures that he had personally collected and witnessed. The letter further noted that even if all the remaining signatures witnessed by district residents were verified, Lux would still not meet the 1000-signature threshold necessary to appear on the ballot. Two days later, the Board issued a final ruling confirming that, with the petitions Lux had witnessed excluded, he had failed to provide sufficient signatures to qualify as a House candidate from Virginia’s Seventh District.
B.
On July 13, 2010, plaintiffs sued the Board in the federal district court for the Eastern District of Virginia. Their one-count complaint alleged that section 24.2-506’s district-residency requirement for petition witnesses violated their rights to freedom of speech and association under the First and Fourteenth Amendments. Plaintiffs sought a declaration that the residency requirement was unconstitutional. They also asked for preliminary and permanent injunctive relief against the Board’s enforcement of the requirement, as well as attorney’s fees.
The Board opposed plaintiffs’ request for a preliminary injunction and, in early August, moved to dismiss their complaint under Fed.R.Civ.P. 12(b)(6). Recognizing the time constraints posed by the looming filing deadline for the November election, the parties consolidated their motions for preliminary relief and disposition. In late August 2010, the district court denied plaintiffs’ motion for a preliminary injunction and granted the Board’s motion to dismiss.
In a comprehensive memorandum decision that relied in significant part on our decision in
Davis,
the district court held that plaintiffs had failed to state a plausible claim for relief. The district court focused in particular on
Davis’s
analysis of a statute that established ballot-access conditions in presidential elections for organizations that did not qualify as political parties under Virginia law; among these conditions was a residency requirement for petition witnesses similar to the provision at issue here. As the district court explained,
Davis
held that that requirement passed constitutional muster, as it served the “important purpose” of ensuring a threshold level of popular support, by mandating at least one in-district “activist” willing to “shoulder the burden of witnessing signatures.” J.A. 235 (quoting
Davis,
On August 27, 2010, plaintiffs timely appealed. They subsequently sought injunctive relief, which we denied on September 15, 2010.
Plaintiffs then applied for an injunction from the U.S. Supreme Court. On September 30, 2010, Chief Justice Roberts, in his capacity as Circuit Justice for this circuit, declined to grant relief.
See Lux v. Rodrigues,
— U.S.-,
II.
Against that background, we turn to consideration of the arguments presented. As a threshold matter, the Board raises two distinct jurisdictional challenges. First, it contends that Cruse, Mikel, and Foret lack standing, as they cannot show a cognizable injury. Second, it urges that Lux’s own claim has been rendered moot. We consider each argument in turn.
A.
Article III standing requires plaintiffs to demonstrate, inter alia, “an ‘injury in fact’ that is (a) concrete and particularized and (b) actual or imminent, not conjectural or hypothetical.”
Doe v. Obama,
While we are not unsympathetic to Lux’s supporters’ frustration, they cannot show they suffered any cognizable harm arising out of the residency requirement. The Board duly counted the signatures collected by Cruse, Mikel, and Foret, and section 24.2-506 did not prevent them from casting write-in votes for Lux in the congressional election. On these facts, Lux’s coplaintiffs’ “abstract, generalized interest” in seeing his name on the ballot cannot “meet the requirement that an injury be concrete and particularized.”
Bishop v. Bartlett,
We are also unpersuaded by plaintiffs’ argument that Cruse, Mikel, and Foret have third-party standing to advance the First Amendment rights of others. Plaintiffs are correct that “courts sometimes permit litigants to challenge a statute ‘not because their own rights of free expression are violated, but because of a judicial prediction or assumption that the statute’s very existence may cause others not before the court to refrain from constitutionally protected speech or expression.’ ”
Burke v. City of Charleston,
B.
The Board next asserts that, with the 2010 election long past, Lux’s own claim is *401 moot. 3 Specifically, it argues that it is highly unlikely that Lux will mount another independent run for Congress in a district in which he does not live and opt to witness his own petitions. The Board elaborates that Virginia is scheduled to undergo redistricting in 2011, which, it claims, renders the prospect of Lux living outside of the Seventh Congressional District during the next congressional election yet more remote. The Board’s claim lacks merit.
A case is moot “when the issues presented are no longer ‘live’ or the parties lack a legally cognizable interest in the outcome.”
Simmons v. United Mortg. & Loan Inv., LLC,
Plaintiffs’ complaint explicitly stated that Lux is “considering running in a future election for the United State[s] House of Representatives in Virginia’s Seventh Congressional District.” J.A. 12;
cf. Leake,
III.
We proceed to the merits of Lux’s argument that the court erred by relying on
Davis
to dismiss his challenge to the district residency requirement. We review the grant of a motion to dismiss de novo, mindful that to survive such a motion, a complaint must “raise a right to relief’ that is more than “speculative.”
Coleman v. Md. Court of Appeals,
Lux contends that the district court erred by deferring to our reasoning in
Davis
when evaluating the district residency requirement’s constitutionality. He argues in particular that the Supreme Court’s intervening decisions in
Meyer v. Grant,
Ordinarily, “[a] decision of a panel of this court becomes the law of the circuit and is binding on other panels.”
United States v. Collins,
A brief review of
Davis
sets the stage for our assessment of the Supreme Court’s intervening decisions. As noted above, the statute at issue in
Davis
established ballot-access requirements in presidential elections for organizations that failed to qualify as “political parties” under Virginia law.
Our decision in Davis primarily addressed the constitutionality of the distribution requirement. See id. at 867-69. Indeed, we devoted just one paragraph of our opinion to assessing the constitutional merits of the residency provision. Id. at 869-70. Our brief discussion of that portion of the statute first noted that mandating that someone witness petition signatures helped combat election fraud. Id. at 869. We then echoed the district court’s determination that the additional requirement that witnesses be district residents served a distinct state interest, explaining:
[T]he requirement that the witness be from the same congressional district as the petition signer serves the important purpose of assuring “some indication of geographic as well as numerical sup *403 port” by demonstrating “that within each congressional district there is at least one ‘activist’ sufficiently motivated to shoulder the burden of witnessing signatures.” It is difficult to imagine how the state could accomplish these objectives by less restrictive means. The statute does not limit the number of signatures that an individual may witness nor does it require that witnesses be members of the Libertarian Party.
Id.
at 869-70 (quoting
Libertarian Party of Va. v. Davis,
Guaranteeing sufficient in-district popular support was the lone state interest we identified in connection with the residency requirement.
See id.
In the more than twenty-five years since we decided
Davis,
the Supreme Court has twice considered— and on each occasion rejected as a rationale — the importance of ensuring a threshold level of grassroots support as a basis for restrictions on petition circulation.
See Buckley,
About three years after our holding in
Davis,
the Supreme Court considered a Colorado law that made payment of petition circulators a felony offense.
5
See Meyer,
More than a decade later, the Supreme Court reached a similar conclusion in
Buckley.
There, the Court once more faced Colorado laws governing initiative-petition circulators, including a “requirement that ... circulators be registered voters.”
Buckley,
In both Meyer and Buckley, the Supreme Court recognized that a signature requirement is generally adequate to ensure the popular support necessary to warrant ballot access. In doing so, the Court undermined the only state interest that Davis identified in support of a residency requirement. Against the backdrop of these intervening decisions, we can no longer say that an in-district witness requirement is necessarily justified by a state’s desire to gauge the depth of a candidate’s support.
Our recognition that Davis’s abbreviated residency-requirement analysis has been superseded should not be confused for a determination that the provision challenged here offends Lux’s constitutional rights. Neither Meyer nor Buckley addressed the particular witness residency requirement at issue in this case. Moreover, we do not read either decision as foreclosing the possibility that something more than a threshold signature requirement may, in some circumstances, be constitutionally permissible as a means of ensuring popular support or achieving another state interest. In other words, we hold only that the district court erred by relying on Davis to find that Lux’s complaint did not raise a plausible claim for relief and do not otherwise address the merits of Lux’s constitutional challenge.
As this case comes before us on appeal of a Fed.R.Civ.P. 12(b)(6) dismissal, we reserve substantive consideration of Lux’s claim for the district court in the first instance. On remand, the court should conduct an independent analysis of the state interest served by the district residency requirement and, after determining the appropriate standard of review, conclude whether that portion of section 24.2-506 unduly restricts Lux’s constitutional rights.
See Celebrezze,
IV.
For the foregoing reasons we affirm the district court’s dismissal of Lux’s coplaintiffs, reverse the dismissal of Lux’s claim, and remand for further proceedings.
AFFIRMED IN PART, REVERSED IN PART, AND REMANDED
Notes
. With certain exceptions not relevant here, the Code of Virginia defines a “qualified voter” as one who “is entitled to vote pursuant to the Constitution of Virginia and who is (i) 18 years of age on or before the day of the election ... (ii) a resident of the Commonwealth and of the precinct in which he offers to vote, and (iii) registered to vote.” Va.Code Ann. § 24.2-101.
. Lux's nonresident status did not affect his constitutional eligibility for the district's House seat, see U.S. Const. Art. I. § 2, nor does the Board otherwise contest his statutory or constitutional qualifications for the office.
. Given our determination that plaintiffs Cruse, Mikel, and Foret lack standing, we do not address the Board's argument that their claims are also moot.
. Because we find that Meyer and Buckley superseded the basis we relied on in Davis to sustain the residency requirement, we do not addrqss Lux’s additional argument that Davis is factually and legally distinguishable from his present claim.
. The Colorado restriction at issue in
Meyer
concerned the circulation of petitions in support of ballot initiatives, rather than candidates. We do not find that distinction significant here.
Meyer’s
apparent rejection of the proposition that something more than a threshold signature requirement is necessary to assure popular support is plainly applicable in the candidate context.
Cf. Krislov v. Rednour,
By the same token, we do not believe the fact that
Meyer
and
Buckley
addressed petition
circulators
rather than
witnesses
is salient. While that distinction may bear on the comparative intrusiveness of the measure at issue here, it does not affect the Court’s rejection of the sole rationale, "some indication of geographical as well as numerical support,” which underlaid the
Davis
residency-requirement analysis.
. In support of its claim that
Davis
remains good law, the Board draws on
Buckley’s
suggestion that some residency requirements are presumptively constitutional.
See
Appellee’s Br. at 23-24 (citing
Buckley,
