A) Bush v. Gore (2000) CORRECT This is the correct answer because the case directly addressed the counting of popular votes in Florida during the 2000 presidential election. The Supreme Court's decision to stop the recount effectively determined the winner of the presidency, making it a landmark case on election law and the Equal Protection Clause. The ruling emphasized the need for uniform standards in vote counting, which has had lasting implications for how states conduct elections. This case is often cited in discussions about the role of the judiciary in electoral disputes and the importance of clear election procedures.
B) U.S. v. Nixon (1974) INCORRECT This case concerned the limits of executive privilege, not vote counting. It arose from the Watergate scandal and required President Nixon to turn over tape recordings and documents subpoenaed by the special prosecutor. The Supreme Court unanimously held that the President's claim of executive privilege was not absolute and could not be used to withhold evidence in a criminal proceeding. This case is significant for establishing the principle that no one, not even the President, is above the law, but it has no direct connection to how states count popular votes.
C) Baker v. Carr (1962) INCORRECT This case dealt with legislative apportionment and the principle of "one person, one vote." It established that federal courts could hear cases involving redistricting and that the Equal Protection Clause requires that legislative districts be roughly equal in population. While it is a landmark case in voting rights, it does not address the counting of popular votes for president and vice president. Instead, it focuses on the drawing of district lines for state legislatures and Congress.
D) Citizens United v. Federal Election Commission (2010) INCORRECT This case addressed campaign finance, not vote counting. The Supreme Court ruled that the government cannot restrict independent political expenditures by corporations and unions, citing the First Amendment's protection of free speech. This decision led to the creation of Super PACs and significantly changed the landscape of political fundraising. While it has a major impact on elections, it does not involve the process of counting popular votes for president and vice president.