1804 United States presidential election
Updated: Wikipedia source
Presidential elections were held in the United States from November 2 to 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 renominated 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.