1824–25 United States Senate elections
Senators were elected over a wide range of time throughout 1824 and 1825, and a seat may have been filled months late or remained vacant due to legislative deadlock.Incumbent Democratic-Republican Caesar A. Rodney resigned on January 29, 1823, after being appointed U.S. Minister Plenipotentiary to the United Provinces of the River Plate, an office now known as the U.S.Nicholas Van Dyke, the incumbent, was reelected late.Incumbent Democratic-Republican Ninian Edwards resigned on March 3, 1824, to become the U.S. Minister to Mexico, although he never took office.Former Speaker of the Illinois House of Representatives John McLean, a Democratic-Republican was elected to take his place on November 24, 1824.Edward Lloyd won election over Ezekiel F. Chambers by a margin of 22.47%, or 20 votes, for the Class 3 seat.