opinion: Per Curiam.
  California Educ. Code Ann. § 39640 (West Supp. 1982) requires school districts to award any contracts for work involving more than $12,000 to the “lowest responsible bidder.” For projects over $100,000, the Oakland School District requires that to be considered responsible, general contractors must use minority-owned businesses for at least 25 percent of the dollar amount of the total bid. Petitioners submitted the low bid for an advertised project but were disqualified under the School District plan as not being responsible. They brought this action claiming damages and asserting that the affirmative-action plan violated not only the Federal Constitution but also state law. The Court of Appeals affirmed a judgment of the District Court upholding the plan on constitutional grounds. 662 F. 2d 550 (1981). Although the Court of Appeals acknowledged that under one of its prior decisions, the plan at issue might be invalid under state law, it declined to decide the state-law question since it was a sensitive matter and petitioners could present it to the state courts.
  If the affirmative-action plan is invalid under state law, the Court of Appeals need not have reached the federal constitutional issue. Nevertheless, the Court of Appeals declined to resolve the pendent state-law claim. Under Hagans v. Lavine, 415 U. S. 528, 546 (1974), and Mine Workers v. Gibbs, 383 U. S. 715 (1966), this was an abuse of discretion in the circumstances of this case.
  We accordingly grant the petition for certiorari, vacate the judgment of the Court of Appeals, and remand the case for further proceedings consistent with this opinion.
  So ordered.
instruction: What follows is an opinion from the Supreme Court of the United States. Your task is to determine whether the decision of the court whose decision the Supreme Court reviewed was itself liberal or conservative. 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. The lower court's decision direction is unspecifiable if the manner in which the Supreme Court took jurisdiction is original or certification; or if the direction of the Supreme Court's decision is unspecifiable and the main issue pertains to private law or interstate relations