session. Change in composition End of the last Congress Beginning of the next Congress Special elections There were special elections in 1790 and 1791 during the 1st United States Congress and 2nd United States Congress. New states and newly-ratified states are not included as special elections. Elections are sorted by date then district. 1st Congress |- ! | Theodorick Bland | | Anti-Administration | 1789 | | Incumbent died June 1, 1790.New member elected July 1790.Anti-Administration hold.Winner was later elected to the next term, see below. | nowrap | |- ! | Pierpont Edwards | | Pro-Administration | 1790 | | Predecessor declined election.New member elected December 16, 1790.Pro-Administration hold.Winner had already been elected to the next term, see below. | nowrap | |} 2nd Congress |- ! | colspan=3 | Vacant | | Representative-elect James Townsend (Pro-Administration) died May 24, 1790.New member elected April 26–28, 1791.Anti-Administration gain. | nowrap | |- ! | Roger Sherman | | Pro-Administration | 1790 | | Incumbent-and-Representative-elect resigned March 31, 1791, to become U.S. Senator.New member elected September 19, 1791.Pro-Administration hold. | nowrap | |- ! | William Pinkney | | Pro-Administration | 1790 | | Incumbent resigned.New member elected October 26–29, 1791.Anti-Administration gain.Winner seated February 5, 1792. | nowrap | |} Connecticut Connecticut elected all five of its representatives at-large on a general ticket on September 20, 1790. |- ! rowspan=5 | | Roger Sherman | | Pro-Administration | 1788 | Incumbent re-elected.Winner declined to serve and a new member would later be elected in a special election. | nowrap rowspan=5 | |- | Benjamin Huntington | | Pro-Administration | 1788 | | Incumbent lost re-election.New member elected.Pro-Administration hold. |- | Jonathan Sturges | | Pro-Administration | 1788 | Incumbent re-elected. |- | Jonathan Trumbull Jr. | | Pro-Administration | 1788 | Incumbent re-elected. |- | Jeremiah Wadsworth | | Pro-Administration | 1788 | | Incumbent lost re-election.New member elected.Pro-Administration hold.Winner declined to serve and the incumbent was re-elected in a special election. |} There were two subsequent special elections. The first was held to fill the vacancy left by Pierpont Edwards (Pro-Administration) declining to serve and was won by Jeremiah Wadsworth (Pro-Administration). The second was held September 19, 1791, to fill the vacancy left by Roger Sherman (Pro-Administration)'s election to the Senate and was won by Amasa Learned (Pro-Administration). Delaware |- ! | John M. Vining | | Pro-Administration | 1789