The Twelfth Amendment to the United States Constitution provides the procedure for electing the president and vice president. It replaced the procedure in Article II, Section 1, Clause 3, under which the Electoral College originally functioned. The amendment was proposed by 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 Wednesday, January 7, 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 1816 United States presidential election was the eighth quadrennial presidential election. It was held from Friday, November 1 to Wednesday, 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 1820 United States presidential election was the ninth quadrennial presidential election. It was held from Wednesday, November 1, to Wednesday, December 6, 1820. Taking place at the height of the Era of Good Feelings, the election saw incumbent Democratic-Republican President James Monroe win re-election without a major opponent. It was the third and the most recent United States presidential election in which a presidential candidate ran effectively unopposed. As of 2024, this is the most recent presidential election where an incumbent president was re-elected who was neither a Democrat nor a Republican, before the Democratic-Republican party split into separate parties. James Monroe's re-election marked the first time in U.S. history that a third consecutive president won a second election. This happened again with Barack Obama's re-election in the 2012 election and at no other point have multiple consecutive presidents won two elections. Monroe is also the first candidate to receive over 200 electoral votes for president.
In United States presidential elections, an unpledged elector is a person nominated to stand as an elector but who has not pledged to support any particular presidential or vice presidential candidate, and is free to vote for any candidate when elected a member of the Electoral College. Presidential elections are indirect, with voters in each state choosing electors on Election Day in November, and these electors choosing the president and vice president of the United States in December. Electors in practice have since the 19th century almost always agreed in advance to vote for a particular candidate — that is, they are said to have been pledged to that candidate. In several elections in the 20th century, however, competitive campaigns were mounted by candidates who made no pledge to any presidential nominee before the election. These anomalies largely arose from fissures within the Democratic Party over the issues of civil rights and segregation. No serious general election campaign has been mounted to elect unpledged electors in any state since 1964.
The election of the president and the vice president of the United States is an indirect election in which citizens of the United States who are registered to vote in one of the fifty U.S. states or in Washington, D.C., cast ballots not directly for those offices, but instead for members of the Electoral College. These electors then cast direct votes, known as electoral votes, for president, and for vice president. The candidate who receives an absolute majority of electoral votes is then elected to that office. If no candidate receives an absolute majority of the votes for president, the House of Representatives elects the president; likewise if no one receives an absolute majority of the votes for vice president, then the Senate elects the 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 1956 United States presidential election in Maryland took place on November 6, 1956, as part of the 1956 United States presidential election. State voters chose nine representatives, or electors, to the Electoral College, who voted for president and vice president.
The 1788–89 United States presidential election in Maryland took place on January 7, 1789, as part of the 1788–1789 United States presidential election to elect the first President. Voters chose eight representatives, or electors to the Electoral College, who voted for President and Vice President. However, 2 electors would not vote.
The 1796 United States presidential election in Maryland took place on an unknown date in 1796, as part of the 1796 presidential election. Voters chose ten representatives, or electors to the Electoral College, who voted for President and Vice President.
The 1800 United States presidential election in Maryland took place on an unknown date in 1800, as part of the 1800 presidential election. Voters chose ten representatives, or electors to the Electoral College, who voted for President and Vice President.
The 1804 United States presidential election in Maryland took place on an unknown date in 1804, as part of the 1804 presidential election. Voters chose eleven representatives, or electors to the Electoral College, who voted for President and Vice President.
Voting in Maryland for the 1808 United States presidential election took place on an unknown date. Voters chose eleven representatives, or electors to the Electoral College, who voted for President and Vice President.
The 1812 United States presidential election in Maryland took place on an unknown date in 1812, as part of the 1812 presidential election. Voters chose eleven representatives, or electors to the Electoral College, who voted for President and Vice President.
The 1816 United States presidential election in Maryland took place on an unknown date in 1816, as part of the 1816 presidential election. Voters chose eleven representatives, or electors to the Electoral College, who voted for President and Vice President.
The 1820 United States presidential election in Kentucky took place between 1 November and 6 December 1820, as part of the 1820 United States presidential election. Voters chose twelve representatives, or electors to the Electoral College, who voted for President and Vice President.
Government 
