1804 United States presidential election

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.

Jefferson was re-nominated by his party's congressional nominating caucus without opposition, and the party nominated Governor George Clinton of New York to replace Aaron Burr as Jefferson's running mate. With former President John Adams in retirement, the Federalists turned to Pinckney, a former ambassador and Revolutionary War hero who had been Adams's running mate in the 1800 election.

Though Jefferson had only narrowly defeated Adams in 1800, he was widely popular due to the Louisiana Purchase and a strong economy. He carried almost every state, including most states in the Federalist stronghold of New England. Several states did not hold a popular vote for president, but Jefferson dominated the popular vote in the states that did. Jefferson's 45.6 percentage point victory margin in the popular vote remains the highest victory margin in a presidential election in which there were multiple major party candidates.

Background
Although the presidential election of 1800 was a close one, Jefferson steadily gained popularity during his term. American trade boomed due to the temporary suspension of hostilities during the French Revolutionary Wars in Europe, and the Louisiana Purchase was heralded as a great achievement.

Democratic-Republican Party nomination
The congressional nominating caucus of the Democratic-Republican Party was held in February 1804, with 108 members of the United States Congress in attendance and Senator Stephen R. Bradley as its chair. Jefferson was renominated by acclamation while Vice President Aaron Burr was not considered for renomination. The caucus selected to give the vice-presidential nomination to Governor George Clinton whose main opponent was Senator John Breckinridge. A thirteen member committee was selected to manage Jefferson's presidential campaign.

Vice-presidential candidates

 * John Breckinridge (Kentucky), U.S. Senator
 * George Clinton (New York), Governor
 * Gideon Granger (Connecticut), Postmaster General
 * John Langdon (New Hampshire), former U.S. Senator
 * Levi Lincoln (Massachusetts), U.S. Attorney General
 * William Maclay (Pennsylvania), former U.S. Senator

Federalist Party nomination
The Federalists did not hold a nominating caucus, but Federalist Congressional leaders informally agreed to nominate a ticket consisting of Charles Cotesworth Pinckney of South Carolina and former Senator Rufus King of New York. Pinckney's public service during and after the American Revolutionary War had won him national stature, and Federalists hoped that Pinckney would win some Southern votes away from Jefferson, who had dominated the Southern vote in the previous election.

General election
Federalist leader Alexander Hamilton's death in July 1804 following the Burr–Hamilton duel destroyed whatever hope the Federalists had of defeating the popular Jefferson. Leaderless and disorganized, the Federalists failed to attract much support outside of New England. The Federalists attacked the Louisiana Purchase as unconstitutional, criticized Jefferson's gunboat navy, and alleged that Jefferson had fathered children with his slave, Sally Hemings, but the party failed to galvanize opposition to Jefferson. Jefferson's policies of expansionism and reduced government spending were widely popular. Jefferson was aided by an effective Democratic-Republican party organization, which had continued to develop since 1800, especially in the Federalist stronghold of New England.

Jefferson's victory was overwhelming, and he even won four of the five New England states. Pinckney won only two states, Connecticut and Delaware. This was the first election where the Democratic-Republicans won in Maryland, Massachusetts, New Hampshire, and Rhode Island.

Results




Source (Popular Vote): A New Nation Votes: American Election Returns 1787-1825''

Source (electoral vote):

(a) Only 11 of the 17 states chose electors by popular vote.

(b) Those states that did choose electors by popular vote had widely varying restrictions on suffrage via property requirements.

Popular vote by state
The popular vote totals used are the elector from each party with the highest total of votes. The vote totals of North Carolina and Tennessee appear to be incomplete.

Close states
States where the margin of victory was under 5%:
 * 1)  New Hampshire, 4.02% (702 votes) 

States where the margin of victory was under 10%:
 * 1)  Massachusetts, 7.16% (3,955 votes)