The Twelfth Amendment to the United States Constitution provides the procedure for electing the president and vice president. It replaced the procedure provided in Article II, Section 1, Clause 3, by which the Electoral College originally functioned. The amendment was proposed by the Congress on December 9, 1803, and was ratified by the requisite three-fourths of state legislatures on June 15, 1804. The new rules took effect for the 1804 presidential election and have governed all subsequent presidential elections.
The 1788–89 United States presidential election was the first quadrennial presidential election. It was held from Monday, December 15, 1788, to Saturday, January 10, 1789, under the new Constitution ratified that same year. George Washington was unanimously elected for the first of his two terms as president and John Adams became the first vice president. This was the only U.S. presidential election that spanned two calendar years without a contingent election and the first national presidential election in American history.
The 1792 United States presidential election was the second quadrennial presidential election. It was held from Friday, November 2, to Wednesday, December 5, 1792. Incumbent President George Washington was elected to a second term by a unanimous vote in the electoral college, while John Adams was re-elected as vice president. Washington was essentially unopposed, but Adams faced a competitive re-election against Governor George Clinton of New York.
The 1796 United States presidential election was the third quadrennial presidential election of the United States. It was held from Friday, November 4 to Wednesday, December 7, 1796. It was the first contested American presidential election, the first presidential election in which political parties played a dominant role, and the only presidential election in which a president and vice president were elected from opposing tickets. Incumbent Vice President John Adams of the Federalist Party defeated former Secretary of State Thomas Jefferson of the Democratic-Republican Party.
The 1800 United States presidential election was the fourth quadrennial presidential election. It was held from October 31 to December 3, 1800. In what is sometimes called the "Revolution of 1800", the Democratic-Republican Party candidate, Vice President Thomas Jefferson, defeated the Federalist Party candidate, incumbent president John Adams. The election was a political realignment that ushered in a generation of Democratic-Republican leadership. This was the first rematch in American history.
The 1804 United States presidential election was the fifth quadrennial presidential election, held from Friday, November 2, to Wednesday, December 5, 1804. Incumbent Democratic-Republican president Thomas Jefferson defeated Federalist Charles Cotesworth Pinckney of South Carolina. It was the first presidential election conducted following the ratification of the Twelfth Amendment to the United States Constitution, which reformed procedures for electing presidents and vice presidents.
The 1808 United States presidential election was the sixth quadrennial presidential election, held from Friday, November 4, to Wednesday, December 7, 1808. The Democratic-Republican candidate James Madison defeated Federalist candidate Charles Cotesworth Pinckney decisively.
The 1816 United States presidential election was the eighth quadrennial presidential election. It was held from November 1 to December 4, 1816. In the first election following the end of the War of 1812, Democratic-Republican candidate James Monroe defeated Federalist Rufus King. The election was the last in which the Federalist Party fielded a presidential candidate.
The 1804 United States presidential election in Pennsylvania took place as part of the 1804 United States presidential election. Voters chose 20 representatives, or electors to the Electoral College, who voted for President and Vice President.
In the United States, a contingent election is used to elect the president or vice president if no candidate receives a majority of the whole number of Electors appointed. A presidential contingent election is decided by a special vote of the United States House of Representatives, while a vice-presidential contingent election is decided by a vote of the United States Senate. During a contingent election in the House, each state delegation votes en bloc to choose the president instead of representatives voting individually. Senators, by contrast, cast votes individually for vice president.
The 1804 United States presidential election in Vermont took place between November 2 and December 5, 1804, as part of the 1804 United States presidential election. The state legislature chose six representatives, or electors to the Electoral College, who voted for President and Vice President.
The 1804 United States presidential election in Connecticut took place between November 2 and December 5, 1804, as part of the 1804 United States presidential election. The state legislature chose nine representatives, or electors to the Electoral College, who voted for President and Vice President.
The 1804 United States presidential election in New York took place between November 2 and December 5, 1804, as part of the 1804 United States presidential election. The state legislature chose 19 representatives, or electors to the Electoral College, who voted for President and Vice President.
The 1804 United States presidential election in New Jersey took place between November 2 and December 5, 1804, as part of the 1804 United States presidential election. The state chose eight representatives, or electors to the Electoral College, who voted for President and Vice President.
The 1804 United States presidential election in South Carolina took place between November 2 and December 5, 1804, as part of the 1804 United States presidential election. The state legislature chose 10 representatives, or electors to the Electoral College, who voted for President and Vice President.
The 1804 presidential election in Georgia took place between November 2 to December 15, 1804, as part of the 1804 United States presidential election. As occurred at the time, the state legislatures chose six electors to represent the state in the election.
