OPINION
In 2008, Rancho Santiago Community College District (“the District”) entered into a project labor agreement with the Los Angeles and Orange Counties Building and Construction Trades Council (“the Council”) and its affiliated construction unions that governed labor relations for many District construction projects over a three-to-five-year period. The agreement required, among other things, that contractors use union “hiring halls” to obtain workers, that all workers on covered projects become union members within seven days of their employment, and that all contractors and subcontractors working on covered projects agree to the project labor agreement and to the master labor agreement negotiated by the union for each craft. Seven individual non-union apprentices and two non-union apprenticeship committees filed suit challenging the agreement as preempted by the National Labor Relations Act (“NLRA”) and the Employee Retirement Income Security Act (“ERISA”) and as violative of their rights to substantive and prоcedural due process and to equal protection. The district court granted the defendants summary judgment on all claims.
Reviewing de novo, we hold that entering into the agreement constitutes market participation not subject to preemption by the NLRA or ERISA, and that the agreement did not violate the plaintiffs’ rights to substantive or procedural due process or to equal protection. As a preliminary matter, we also reject the District’s mootness and Eleventh Amendment sovereign immunity defenses. Specifically, we conclude that this appeal falls within the “capable of repetition, yet evading review” exception to mootness, and that the District waived any sovereign immunity defense by failing to pursue it while extensively litigating this suit on the merits. Accordingly, we affirm.
I. FACTUAL AND PROCEDURAL BACKGROUND
In 2002, voters in the Rancho Santiago Community College District approved Ballot Measure E, which authorized the District to issue $337 million in general obligation bonds to fund improvements to the District’s facilities. After voters approved the Measure, unions that had supported the Measure E сampaign encouraged the District to enter into a project labor agree *1017 ment, 1 which would govern labor conditions for the subsequent construction. The District agreed and entered into a “Project Stabilization Agreement” (“PSA” or “the Agreement”) with the Council and affiliated craft unions. Before entering into the Agreement, the District did not conduct any formal studies to determine its costs and benefits, but the District’s Board of Directors heard testimony from many people in the community. According to the District’s former construction manager, Robert Brown, the Board heard estimates that the PSA could increase costs by zero to thirty percent.
The PSA that the District ultimately executed covered all of the District’s construction projects funded with Measure E funds that cost over $200,000: The Agreement applied to all covered projects initiated in a three-year period and would remain in effect for two additional years if neither party terminated it. According to the District, the PSA applied to twenty-seven projects, but the plaintiffs contend that these twеnty-seven projects actually represent twenty-seven categories covering many more discrete projects.
Among other things, the PSA made the signatory unions the exclusive bargaining agents for all employees; established dispute-resolution mechanisms; required use of union “hiring halls” to obtain workers; required all workers on covered projects to start paying union dues within seven days of their employment; and prohibited strikes, picketing, and other disruptions. The Agreement further required all contractors and subcontractors working on a covered project to agree to the PSA and to the craft unions’ master labor agreements, which required contractors to use the unions’ apprenticeship programs and to contribute to union vacation, pension, and health plans. Finally, the PSA established a Work Opportunities Program that required the unions to establish an apprenticeship program for District residents, to encourage the referral and utilization of District residents as workers on covered projects, and to maximizе opportunities for minority- and women-owned businesses.
In response to the District’s approval of the PSA, seven individual apprentices not affiliated with a union (“the individual apprentices” or “the named apprentices”) and two non-union apprenticeship committees (collectively, “the plaintiffs”) filed suit in March 2004 against the District, the Council, and the International Brotherhood of Electrical Workers Union 441’s Electrical Apprenticeship Program (“Local 441”) (collectively, “the defendants”) in the federal district court for the Central District of California. The suit challenged the PSA on the grounds that it violated various state laws, that it was preempted by ERISA and the NLRA, and that it violated the named apprentices’ rights to substantive and procedural due process and to equal protection as guaranteed by the U.S. Constitution. The original complaint sought declaratory and injunctive relief and attorney’s fees and costs.
On the defendants’ motion, the district court dismissed the state law claims against all defendants and dismissed all but the NLRA preemptiоn claim against *1018 Local 441. The parties later agreed to dismiss Local 441 completely.
The defendants later moved for summary judgment on the merits or, in the alternative, partial summary judgment against five of the named apprentices whose claims were allegedly moot because they had graduated from their apprenticeship programs. In response, the plaintiffs amended their complaint to include a request for nominal damages to prevent the graduated apprentices’ claims from becoming moot. Three of the named apprentices, however, agreed to dismiss all of their claims from the action.
The district court held that the prayer for nominal damages prevented the graduated apprentices’ due process and equal protection claims from becoming moot, but granted the defendants’ motion for summary judgment on those claims. After additional briefing, the district court also granted the defendants summary judgment on the ERISA and NLRA preemption claims, concluding that the PSA was exempt from preemption because it constituted state market participation, not regulation. The plaintiffs appealed.
II. JURISDICTION AND STANDARD OF REVIEW
The district court had jurisdiction pursuant to 28 U.S.C. § 1331, and we have jurisdiction under 28 U.S.C. § 1291. We review de novo the district court’s grant of summary judgment.
Mortimer v. Baca,
III. DISCUSSION
Before reaching the merits of the plaintiffs’ claims, we must first address the defendants’ contentions that this appeal is moot and that the District is entitled to sovereign immunity.
A. Mootness
The District contends that this appeal is moot because the PSA has expired and the District is not likely to enter into a new PSA, and because all the named apprentices have graduated. In general, a case is moot if there is no longer any “present controversy as to which effective relief can be granted.”
Outdoor Media Group, Inc. v. City of Beaumont,
As an initial matter, we note that the plaintiffs’ prayer for nominal damages for their substantive due process, procedural due process, and equal protection claims prevents those claims from becoming moot.
2
See Bernhardt v. County of
*1019
Los Angeles,
1. Expiration of the PSA
Despite the expiration of the PSA, we conclude that this appeal is not moot because the challenged cоnduct is “capable of repetition yet evading review.” The “capable of repetition, yet evading review” exception to mootness applies “only where ‘(1) the duration of the challenged action is too short to allow full litigation before it ceases, and (2) there is a reasonable expectation that the plaintiffs will be subjected to it again/ ”
Biodiversity Legal Found.,
First, the duration of the challenged PSA was “too short” to permit full litigation. The duration of a challenged action is “too short” where it is “almost certain to run its course before either this court or the Supreme Court can give the case full consideration.”
Id.
The PSA had a term of three years, but remained in force for two additional years because neither party exercised its right to terminate it after the first three years. For purposes of determining whether the PSA’s duration was so short as to evade review, we consider only the Agreement’s mandatory three-year term. We have applied “the evading-review doсtrine where the ‘duration of the controversy is solely within the control of the defendant.’ ”
Anderson v. Evans,
We have acknowledged that three years is generally too short to allow a case “seeking a declaratory judgment regarding the legality of [an agreement’s] provisions [to] proceed beyond district court review.”
Int’l Ass’n of Machinists & Aerospace Workers, Local Lodge 96k v. B.F. Goodrich Aerospace Aerostructures Grp.,
Second, this case also satisfies the “capable of repetition” requirement. The defendants have not met their burden to show that there is no reasonable expectation that the plaintiffs will be subjected to a PSA again.
See Ackley v. W. Conference of Teamsters,
Because the District has not shown that it will not enter into another PSA in the future, and because the duration of the PSA is too short to allow for full judicial review, the expiration of the PSA does not render the plaintiffs’ claims for declaratory and injunctive relief moot.
2. Graduation of the Named Apprentices
We next consider whether the fact that the individual apprentices have graduated from their apprenticeship programs renders the ERISA and NLRA preemption claims moot as to them. At the outset, however, we note that whether the apprentices remain in this suit will not affect our analysis of the preemption issues or any relief we grant or deny. The plaintiff apprenticeship committees’ claims of ERISA and NLRA preemption are identical to the individual apprentices’ claims, and the apprentices’ identities and particular circumstances are irrelevant to our analysis.
A case is moot when the “parties lack a legally cognizable interest in the outcome.”
U.S. Parole Comm’n v. Geraghty,
The individual apprentices’ ERISA preemption claim, by contrast, does depend on their status as apprentices. They therefore lack a cognizable interest in the outcome of that claim, and the claim is accordingly moot as to them, unless their claim falls within the “capable of repetition, yet evading review” exception to mootness. To establish that their claim falls within that exception, however, the plaintiffs must demonstrate that there is a “reasonable expectation” that they will be subject to a PSA again in their capacity as apprentices.
See Murphy v. Hunt,
B. Sovereign Immunity
The District contends that the Eleventh Amendment entitles it to sovereign immunity from the plaintiffs’ claims seeking nominal damages. We conclude that the District has waived its sovereign immunity and therefore reject its Eleventh Amendment defense. 4
A state waives its Eleventh Amendment immunity if it “unequivocally evidence[s its] intention to subject itself to the jurisdiction of the federal court.”
Hill v. Blind Indus. & Servs. of Md.,
Like the defendants in
Hill
and
Bliemeister,
the District engaged in extensive proceedings in the district court without seeking dismissal on sovereign immunity grounds. Although it baldly asserted in its Answer that it was “immune from liability pursuant to the provisions of the Eleventh Amendment of the United States Constitution,” the District litigated the suit on the merits, participated in discovery, and filed a motion to dismiss and a summary judgment motion without pressing a sovereign immunity defense. Although the District asserted its sovеreign immunity in its opposition to the plaintiffs’ application to file an amended complaint to include a prayer for nominal damages, it did not assert a sovereign immunity defense in the summary judgment briefing filed after the plaintiffs amended their complaint.
5
In circumstances like these, we deem the defendant to have made a tactical decision to delay asserting the sovereign immunity defense.
See Bliemeister,
C. Merits
Having concluded that this appeal is not moot, and that the District has waived its sovereign immunity, we proceed to consider the merits of the plaintiffs’ claims.
1. ERISA and NLRA Preemption Claims
Whether federal law preempts a particular state action is fundamentally a question of congressional intent.
See Engine Mfrs. Ass’n v. S. Coast Air Quality Mgmt.
Dist.,
In general, state action falls within the market participant exception to preemption when the state entity directly participates in the market by purchasing goods or services.
See Engine Mfrs.,
In light of
Gould,
to determine whether a state entity’s direct participation in the market falls within the market participant exception to preemption, we must determine whether the state action is simply proprietary or “tantamount to regulation.” As a guide to making this determination, we have adopted the two-prong test that the Fifth Circuit established in
Cardinal Towing & Auto Repair, Inc. v. City of Bedford,
First, does the challenged action essentially reflect the entity’s own interest in its efficient procurement of needed goods and services, as measured by comparison with the typical behavior of private parties in similar circumstances? Second, does the narrow scope of the challenged action defeat an inference *1024 that its primary goal was to enсourage a general policy rather than address a specific proprietary problem?
Id. As the Fifth Circuit explained, these questions “seek to isolate a class of government interactions with the market that are so narrowly focused, and so in keeping with the ordinary behavior of private parties, that a regulatory impulse can be safely ruled out.” Id.
In applying this test, we have not yet conclusively settled whether a state action must satisfy both prongs, or only one, to qualify as market participation exempt from preemption. We held in
Lockyer
that “a state need not satisfy both questions,” but we subsequently vacated that opinion after the Supreme Court reversed it on other grounds.
See Chamber of Commerce v. Lockyer,
In any event, we conclude that the PSA challenged here satisfies both prongs of the Cardinal Towing test and accordingly is not subject to рreemption by the NLRA and ERISA.
a. Efficient procurement of goods and services, as measured by comparison to private market behavior
The plaintiffs contend that the PSA does not meet the first Cardinal Towing prong both because it does not reflect the District’s interest in “efficient procurement” of goods and services and because it is not comparable to private market behavior. In particular, they first contend that a state entity can have no interest in “efficient procurement” when it spends federal funds and that the Agreement as a whole simply pays off political supporters without actually providing the District with any benefits in terms of “efficient procurement.” Second, they contend that no private party would have entered into an agreement providing so few benefits and that no private party in the District’s position could have lawfully entered into such an agreement.
These contentions rely on too narrow an understanding of what counts as an interest in “efficient procurement” and of how similar a challenged state action must be to private market behavior to qualify as non-preempted market participation under *1025 Cardinal Towing’s first prong. Even if the plaintiffs’ contentions were true, they would not render the District’s direct participation in the market essentially regulatory. Under a proper understanding of Cardinal Towing’s first prong, we conclude that the PSA reflects the District’s interest in the efficient procurement of goods and services, as measured by comparison to typical private market behavior.
i. Efficient procurement
At the outset, we reject the plaintiffs’ suggestion that the PSA cannot reflect the District’s interest in “efficient procurement” to the extent it applies to a construction project funded in part by federal monies. In support of this contention, the plaintiffs point to the Second Circuit’s decision in
Healthcare Association of New York State, Inc. v. Pataki,
The plaintiffs further contend that the PSA does not advance an interest in efficient procurement because it presents several downside risks while offering no benefits in terms of costs, labor availability, or timeliness for the construction. Whether the PSA’s benefits outweighed its costs, however, bears only on whether the District made a good business decision, not on whether it was pursuing regulatory, as opposed to proprietary, gоals. We must keep in mind that congressional intent is the touchstone of our preemption analysis,
Engine Mfrs.,
Moreover, we have made clear that “efficient procurement” under
Cardinal Towing’s
first prong does not necessarily mean “cheap” procurement, but rather “procurement that serves the state’s purposes.”
Engine Mfrs.,
Gould,
however, necessarily places limits on what can qualify as an interest in “efficient procurement” under
Cardinal Towing’s
first prong. Although “effiсient procurement” means “procurement that serves the state’s purposes,”
id.,
pursuit of some purposes will make a state’s participation in the market “tantamount to regulation.”
Gould,
Unlike the regulation in
Gould,
nothing on the face of the PSA indicates that it serves purely regulatory purposes unrelated to the performance of contractual obligations to the state. The PSA does not reward or sanction private parties for their conduct in the private market, but rather addresses only how construction contractors and subcontractors will perform work on the District’s projects. Plaintiffs contend that the PSA’s primary purpose was to reward the unions that supported the Measure E campaign. Yet, the District intended for the PSA to serve legitimate proprietary goals, including containing costs, optimizing productivity, and boosting the economy. Private parties undertaking large construction projects commonly enter into pre-hire project labor agreements like the PSA challenged here. Whether or not plaintiffs are correct that the District had ulterior motives in adopting the PSA, we are quite certain that Congress did not intend for the NLRA’s or ERISA’s preemptive scope to turn on state officials’ subjective reasons for adopting a regulation or agreement.
Cf. N. Ill. Chapter of Associated Builders and Contractors, Inc. v. Lavin,
ii. Comparison to private market behavior
The plaintiffs next contend that the PSA cannot satisfy Cardinal Towing’s first prong because it is not sufficiently comparable to private market behavior. In particular, they contend that no private party would have entered into a project labor agreement providing so few benefits and that no private party in the District’s position could have lawfully entered into such an agreement. However, even if true, those considerations would not preclude the PSA from being sufficiently analogous to private market behavior to satisfy Cardinal Towing’s first prong.
First, the plaintiffs’ contention that no private party would have entered into a deal with so few benefits again reflects its misunderstanding that Congress intended to allow state market participation to escape preemption only where the state gets *1027 a good deal. As explained above, whether the PSA was a good deal for the District does not bear on whether the Agreement is regulatory or proprietary. Indeed, we cannot credibly ascribe to Congress an intent to use preemption to impose economic rationality on state contracting decisions.
Second, the plaintiffs also miss the mark in contending that a private purchaser in the District’s position could not have lawfully entered into the PSA because the NLRA bars such pre-hire agreements unless the contracting party is an “employer engaged primarily in the building and construction industry,” which a school district is not. 7 See 29 U.S.C. § 158(f). This provision of the NLRA does not mean that thе District’s entry into the PSA is not market participation; it simply means that the District can participate in the market in a way in which private parties cannot. The NLRA itself creates this disparity by explicitly excluding states and their political subdivisions from the NLRA’s prohibitions. See id. § 152(2) (“the term ‘employer’ ... shall not include ... any State or political subdivision thereof’); § 158(a) (providing that “[i]t shall be an unfair labor practice for an employer ” to engage in certain enumerated actions (emphasis added)). Were we to hold, as the plaintiffs urge, that a state’s direct participation in the market becomes “regulation” subject to preemption whenever a private party could not lawfully participate in the market in the same way, we would effectively subject state employers to the NLRA’s proscriptions. This would conflict with the clear congressional intent to exempt state employers from the NLRA’s reach.
Contrary to the plaintiffs’ suggestion, the Supreme Court’s statement in
Boston Harbor
that Congress does not preempt state proprietary action “where analоgous private conduct would be permitted” does not suggest otherwise.
See Boston Harbor,
Indeed, the identity of the parties who signed the project labor agreement in Bos
*1028
ton Harbor
only formally distinguishes that agreement from the PSA here. The agreements’ practical effects are the same. Here, as in
Boston Harbor,
a pre-hire agreement binds all contractors and subcontractors working on covered projects. Moreover, the agency in
Boston Harbor
“approved and adopted” the labor agreement, which the project manager had entered into “on [the agency’s] behalf,” and, like the District, required all bidders to submit to the agreement as a condition of accepting work on the project.
Id.
at 222,
In sum, we hold that the District’s PSA reflects its interest in the efficient procurement of goods and services, as measured by comparison to typical private market behavior. It therefore qualifies as market participation exempt from preemption under Cardinal Towing’s first prong.
b. Narrow scope
We further conclude that the PSA challenged here is sufficiently narrow in scope that it qualifies as non-preempted market participation under Cardinal Towing’s second prong.
Despite covering many individual construction projects, the PSA limited its reach to construction projects costing over $200,000 that were paid for with the $337 million of Measure E funds and that were initiated during the three-year term of the agreement. This is undoubtedly narrower than the agreement approved in
Boston Harbor,
which covered $6.1 billion of spending over ten years.
Id.
at 221,
Moreover, the PSA’s substantive scope is very similar to the
Boston Harbor
agreement’s.
See id.
at 232,
The District’s Agreement does, however, contain one set of provisions that the
Boston Harbor
agreement did not appear to have: provisions requiring the parties to maximize work opportunities for the District’s residents and for minority- and women-owned businesses. Specifically, the Agreement required signatory unions to establish apprenticeship programs for District residents, to encourage District residents to enter those programs, and to encourage the utilization of District residents on the projects covered by the PSA. These provisions do not render the PSA too broad to qualify as market participation under
Cardinal Towing’s
“narrow scope” test; they are simply part of the
*1029
consideration that the unions provided in exchange for the benefits they received under the Agreement. This conclusion accords with the Supreme Court’s decision in
White v. Massachusetts Council of Construction Employers, Inc.,
We therefore conclude that the District’s PSA is sufficiently narrow to qualify as market participation exempt from preemption under Cardinal Towing’s second prong. Because entering into the PSA qualifies as market participation — under both prongs of the Cardinal Towing test— it is nоt subject to preemption by ERISA or the NLRA. We accordingly affirm the grant of summary judgment for the defendants on the preemption claims.
2. Substantíve and Procedural Due Process Claims
The plaintiffs contend that the PSA violated their rights to substantive and procedural due process by depriving them of liberty and property interests protected by the Fourteenth Amendment. To succeed on a substantive or procedural due process claim, the plaintiffs must first establish that they were deprived of an interest protected by the Due Process Clause.
See Shanks v. Dressel,
a. Claimed Liberty Interest
The plaintiffs first contend that the PSA deprived them of their protected liberty interest in pursuing careers as electricians by “categorically disqualifying] them and rendering] them ineligible for virtually any Rancho Santiago construction work for three years.” The Due Process Clause does indeed protect the plaintiffs’ liberty interest in pursuing their careers as electricians.
See Bd. of Regents v. Roth,
The Supreme Court made clear in
Board of Regents v. Roth
that merely declining to rehire someone does not infringe on his liberty interest in pursuing a career because the person “remains free as before to seek another” job.
Id.
at 575,
The plaintiffs contend that the PSA violated their liberty by effectively barring them from working on a significant portion of the District’s construction projects for three years. This contention fails for two reasons. First, the plaintiffs were not excluded from all public employment on the District’s projects; they still had the opportunity to work on non-Measure E-funded projects and on Measure E projects *1030 costing less than $200,000. Second, and more importantly, the plaintiffs were not actually excluded from working on the projects covered by the PSA: the non-union apprentices remained free to join a union apprenticeship program qualified to provide workers for those projects. The PSA therefore did not violate the plaintiffs’ liberty interest in pursuing their careers as electricians.
b. Claimed Property Interests
The plaintiffs also contend that the PSA deprived them of three protected property interests: (1) their interest in remaining eligible to work on the District’s construction projects, (2) their interest in a state-funded education, and (3) their interest in the credits, job hours, and training they had earned through their non-union apprenticeship programs. We conclude that the PSA did not deprive the plaintiffs of any such protected property interests.
First, the plaintiffs havе not even made the threshold showing that the Due Process Clause protects their interest in remaining eligible to work on the District’s construction projects. Protected property interests “are not created by the Constitution[, but r]ather ... they are created and their dimensions are defined by existing rules or understandings that stem from an independent source such as state law.”
Roth,
Second, even if California law confers a protected property interest in a state-funded education, the plaintiffs do not explain how the PSA deprived them of that interest. Indeed, the plaintiffs clearly could not show that they suffered a deprivation of their purported right to an education, as they have all graduated. We accordingly reject this claim.
Third, even if California law creates protected property interests in the credits, job hours, and training that the named apprentices earned through their non-union apprenticeship programs, the PSA did not deprive them of those interests. The PSA did not kick the plaintiffs out of their apprenticeship programs or strip them of their credits and training hours. At most, the PSA required the plaintiffs to put some of their credits and training hours in jeopardy if they chose to transfer to another apprenticeship program so that they could work on PSA-covered projects. This loss would have resulted from the apprentices’ choice to transfer programs, not from the PSA itself.
In sum, the PSA did not deprive the plaintiffs of any liberty or property interest protected by the Due Process Clause. We accordingly affirm the grant of summary judgment to the defendants on the plaintiffs’ due process claims.
*1031 3. Equal Protection Claim
Finally, the plaintiffs contend that the PSA violated their rights to equal protection because it treated them differently than union-affiliated apprentices. The parties agree, as they must, that rational basis scrutiny applies to this claim.
8
See City of New Orleans v. Dukes,
The plaintiffs have not met this burden. The plaintiffs contend that the PSA fails the rational basis test because it was not rationally related to the District’s claimed legitimate interest in avoiding labor disruptions. In support of this contention, they point to evidence that the District did not analyze the PSA’s “true cost impact.” This contention misses the mark. First, the Equal Protection Clause “allows the States wide latitude” with economic decisions, and “presumes that even improvident decisions will eventually be rectified by the democratic processes.”
City of Cleburne,
Because we conclude that the PSA was rationally related to the District’s legitimate interest in preventing labor disruptions, we affirm the grant of summary judgment to the defendants on the plaintiffs’ Equal Protection Claim.
IV. CONCLUSION
In sum, we conclude that this appeal is not moot and that the District has waived any claim to sovereign immunity. Because we conclude that the PSA falls within the market participant exception to preemption, we affirm the grant of summary judgment to the defendants on the ERISA and *1032 NLRA preemption claims. We also affirm the grant of summary judgment to the defendants on the plaintiffs’ substantive and procedural due process claims because the plaintiffs have not shown that the District deprived them of any constitutionally protected liberty or property interest. Finally, wе conclude that the PSA was rationally related to the District’s legitimate interest in avoiding labor disruptions and accordingly affirm the grant of summary judgment to the defendants on the Equal Protection claim.
DISMISSED in part; AFFIRMED in part.
Notes
. A project labor agreement is a pre-hire agreement between a construction project owner and a union or unions that a contractor must agree to before accepting work on the project and that establishes the terms and conditions of employment for the project. 51 Corpus Juris Secundum, Labor Relations §311. Such agreements are common in the construction industry, where the short-term nature of employment impedes post-hire collective bargaining, and where contractors need predictable costs and a steady supply of skilled labor. Id.
. The District contends that our decision in
Seven Words LLC v. Network Solutions,
. Absent a waiver, the District would be entitled to sovereign immunity because California community college districts constitute arms of the state entitled to sovereign immunity under the Eleventh Amendment.
See Cerrato v. S.F. Cmty. Coll. Dist.,
. The District contends that it was “not required” to raise its Eleventh Amendment defense until the plaintiffs sought retrospective damages relief, and that the proceedings on the merits before the plaintiffs sought thаt relief therefore were not inconsistent with an intent to preserve its sovereign immunity. This argument appears to stem from an erroneous belief that the District could not have asserted immunity from the plaintiffs' claims for prospective relief. Although state
officers
sued in their official capacities are immune only from suits for retrospective relief,
Porter v. Jones,
. The defendants moved to supplement the record on appeal to include a declaration attesting to these facts, which were not before the district court. Although the court denied the motion in a clerk’s order, we reconsider that decision sua sponte and grant the motion. Because the new facts that the defendants seek to establish bear on whether the controversy before us is moot, we exercise our discretion to supplement the record on aрpeal so that we may determine whether we have jurisdiction over the ERISA and NLRA claims for declaratory and injunctive relief.
See Lowry v. Barnhart,
. We therefore need not decide whether the NLRA or ERISA would preempt the PSA if it were regulation.
. The parties dispute whether a private owner-developer could lawfully enter into an agreement like the PSA here. Because we conclude that the legality of analogous private party conduct is not relevant to the question before us, we need not resolve this dispute.
. The District contends that the PSA does not constitute state action subject to the Equal Protection Clause because it constitutes market participation, not regulation. The market participation doctrine, however, applies only to the Commerce Clause and preemption.
See Engine Mfrs.,
