The 1800–01 United States House of Representatives elections were held on various dates in various states between April 29, 1800 and August 1, 1801. Each state set its own date for its elections to the House of Representatives before the first session of the 7th United States Congress convened on December 7, 1801. They were held at the same time as the 1800 presidential election, in which Vice President Thomas Jefferson, a Democratic Republican, defeated incumbent President John Adams, a Federalist. Elections were held for all 105 seats, representing 15 states. These elections resulted in the Democratic-Republicans picking up 22 seats from the Federalists. This brought the Democratic-Republicans a solid majority of 68 seats, whereas the Federalists were only able to secure 38. Many state legislatures also changed to Democratic-Republican control, with the result that many new Democratic-Republicans were voted into the Senate. The Federalists never again succeeded in gaining a majority of seats in the House of Representatives, and the national Federalist Party disintegrated completely in the early 1820s. The victory of Jefferson and the Democratic-Republicans can be attributed partially to unpopular policies pursued by the Adams administration, including the Alien and Sedition Acts, which sought to curtail guarantees of freedom of speech and freedom of the press spelled out in the Bill of Rights. The difference between Federalist policies in support of a strong national government and the Democratic-Republican preference for states' rights played a prominent role in the election. Federal taxation became an issue as Southerners and Westerners rejected federal taxes levied on property. Election summaries Special elections There were special elections in 1800 and 1801 during the 6th United States Congress and 7th United States Congress. Elections are sorted here by date then district. 6th Congress |- | | John Marshall | | Federalist | 1799 | | Incumbent resigned June 7, 1800 to become U.S. Secretary of State.New member elected July 31, 1800.Democratic-Republican gain.Winner seated November 26, 1800. | nowrap | |- | | Jonathan Brace | | Federalist | 1798 | | Incumbent resigned in May 1800.New member elected September 22, 1800.Federalist hold.Winner was also elected to the next term, see below.Winner seated November 17, 1800. | nowrap | |- | | Dwight Foster | | Federalist | 1793 | | Incumbent resigned June 7, 1800 when elected U.S. Senator.New member elected October 20, 1800.Democratic-Republican gain.Winner seated February 6, 1801. | nowrap | |-