Presidential elections were held in the United States 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 and incumbent, President John Adams in the first peaceful transfer of power in the history of the United States, creating a political realignment that ushered in a generation of Democratic-Republican leadership. This was the first presidential election in U.S. history to be a rematch, the first election where an incumbent president lost re-election, leading to the first time in modern history where a national government changed hands peaceably following a free election.