opinion: Per Curiam.
  Appellants brought actions in the District Court for the District of Vermont that challenged the constitutionality, facially and as applied, of various provisions of the customs laws, 46 Stat. 717 and 757, as amended, 19 U. S. C. §§ 1460 and 1618, that mandate procedures to effect forfeiture and remission or mitigation of penalties imposed after Border Patrol agents apprehended them and seized their vehicles when they crossed the border from Canada without passing through a customs station. The complaints sought (1) declaratory judgments that the challenged provisions were unconstitutional, (2) injunctions against their enforcement, (3) mandamus relief requiring the return of moneys paid as mitigated forfeitures or penalties based on violations of the customs laws, and (4) damages. A three-judge court was convened. The court held that it had jurisdiction under the Tucker Act, 28 U. S. C. § 1346 (a)(2), rejected appellants’constitutional claims, enjoined appel-lees from applying the customs laws except as construed by the court, declined to remit appellants’ fines, and returned to the single-judge District Court the question of damages.
  The District Court held that it had jurisdiction of the complaints under the Tucker Act, and did not address other alternative bases of jurisdiction asserted in the complaints. The jurisdiction of the district courts under the Tucker Act over “[a]ny . . . civil action or claim against the United States . . . founded either upon the Constitution, or any Act of Congress . . .” does not include jurisdiction over appellants’ claims to enjoin enforcement of the challenged provisions of the customs laws. The Tucker Act empowers district courts to award damages but not to grant injunctive or declaratory relief. Richardson v. Morris, 409 U. S. 464 (1973); United States v. King, 395 U. S. 1 (1969); United States v. Sherwood, 312 U. S. 584, 589-591 (1941). It follows that the three-judge court was improperly convened, and this Court therefore has no jurisdiction to entertain the appeal based on the District Court’s refusal to grant injunctive relief founded on appellants’ additional constitutional claims. Appellants’ motion for leave to proceed in forma pauperis is granted, the judgment of the District Court is vacated, and the case is remanded for consideration of appellants’ other asserted bases of jurisdiction.
  So ordered.
  Mr. Justice Douglas and Mr. Justice Marshall took no part in the consideration or decision of this case.
instruction: What follows is an opinion from the Supreme Court of the United States. Your task is to determine the ideological "direction" of the decision ("liberal", "conservative", or "unspecifiable"). Use "unspecifiable" if the issue does not lend itself to a liberal or conservative description (e.g., a boundary dispute between two states, real property, wills and estates), or because no convention exists as to which is the liberal side and which is the conservative side (e.g., the legislative veto). Specification of the ideological direction comports with conventional usage. In the context of issues pertaining to criminal procedure, civil rights, First Amendment, due process, privacy, and attorneys, consider liberal to be pro-person accused or convicted of crime, or denied a jury trial, pro-civil liberties or civil rights claimant, especially those exercising less protected civil rights (e.g., homosexuality), pro-child or juvenile, pro-indigent pro-Indian, pro-affirmative action, pro-neutrality in establishment clause cases, pro-female in abortion, pro-underdog, anti-slavery, incorporation of foreign territories anti-government in the context of due process, except for takings clause cases where a pro-government, anti-owner vote is considered liberal except in criminal forfeiture cases or those where the taking is pro-business violation of due process by exercising jurisdiction over nonresident, pro-attorney or governmental official in non-liability cases, pro-accountability and/or anti-corruption in campaign spending pro-privacy vis-a-vis the 1st Amendment where the privacy invaded is that of mental incompetents, pro-disclosure in Freedom of Information Act issues except for employment and student records. In the context of issues pertaining to unions and economic activity, consider liberal to be pro-union except in union antitrust where liberal = pro-competition, pro-government, anti-business anti-employer, pro-competition, pro-injured person, pro-indigent, pro-small business vis-a-vis large business pro-state/anti-business in state tax cases, pro-debtor, pro-bankrupt, pro-Indian, pro-environmental protection, pro-economic underdog pro-consumer, pro-accountability in governmental corruption, pro-original grantee, purchaser, or occupant in state and territorial land claims anti-union member or employee vis-a-vis union, anti-union in union antitrust, anti-union in union or closed shop, pro-trial in arbitration. In the context of issues pertaining to judicial power, consider liberal to be pro-exercise of judicial power, pro-judicial "activism", pro-judicial review of administrative action. In the context of issues pertaining to federalism, consider liberal to be pro-federal power, pro-executive power in executive/congressional disputes, anti-state. In the context of issues pertaining to federal taxation, consider liberal to be pro-United States and conservative pro-taxpayer. In miscellaneous, consider conservative the incorporation of foreign territories and executive authority vis-a-vis congress or the states or judcial authority vis-a-vis state or federal legislative authority, and consider liberal legislative veto. In interstate relations and private law issues, consider unspecifiable in all cases.