occurs when a majority of senators votes to approve and therefore appoint a nominee. The head of the Executive Branch is the president. Although also named in this first clause, the vice president is not constitutionally vested with any executive power. Nonetheless, the Constitution dictates that the president and vice president are to be elected at the same time, for the same term, and by the same constituency. The framers' intent was to preserve the independence of the executive branch should the person who was vice president succeed to the duties of the presidency. Clause 2: Method of choosing electors Under the U.S. Constitution the president and vice president are chosen by electors, under a constitutional grant of authority delegated to the legislatures of the several states. The Constitution reserves the choice of the precise manner for selecting electors to the will of the state legislatures. It does not define or delimit what process a state legislature may use to create its state college of electors. In practice, the state legislatures have generally chosen to select electors through an indirect popular vote, since the 1820s. Most states use a "winner-take-all" system in which all the state's electors are awarded to the candidate gaining the most popular votes. Maine and Nebraska allow individual congressional districts to each elect one elector. In an indirect popular vote, it is the names of the candidates who are on the ballot to be elected. Most states do not put the names of the electors on the ballot. It is generally understood by the voters and the electors themselves that they are the representative "stand-ins" for the candidates and are expected to cast their electoral college ballots for the president and vice president who appeared on the ballot. The actual electors being voted for are usually selected by the candidate's party. There have been a few cases where some electors have refused to vote for the designated candidate, termed a faithless elector. Many states have mandated in law that electors shall cast their electoral college ballot for the designated presidential candidate. The constitutionality of such mandates was established by the Supreme Court of the United States in Chiafalo v. Washington (2020). Each state chooses as many electors as it has representatives and senators representing it in Congress. Under the 23rd Amendment, the District of Columbia may choose no more electors than the state with the lowest