Van Dyke was a Federalist who was a member of the
Delaware House of Representatives in 1799. From 1801 until 1806 he served as
Attorney General of Delaware. In 1807 he was elected to the 10th
United States Congress to fill the vacancy caused by the resignation of U.S. Representative James M. Broom. He was reelected to the 11th Congress, and served in the U.S. House from October 6, 1807, until March 3, 1811. With the Federalists a powerless minority in Congress, he returned home to serve as the Attorney General of Delaware. He was elected to the
Delaware State Senate for the 1816 and 1817 sessions. While serving there, he was elected to the
United States Senate, where he served from March 4, 1817, until his death on May 21, 1826. He missed the first month and a half of the
18th U.S. Congress, as his first term in the Senate expired on March 3, 1823, and he was not re-elected by the Delaware Legislature until January 7, 1824. He did not take his seat in the Senate for the 18th Congress until January 14, 1824, while the Senate had convened on December 1, 1823. He was Chairman of the Committee on Pensions in the
16th U.S. Congress. ==Personal life==