 The incumbent, Republican Richard L. Hanna, did not run for re-election.Kim A. Myers, a Broome County legislator, won the Democratic nomination unopposed.The 23rd district includes all of Allegany, Cattaraugus, Chautauqua, Chemung, Schuyler, Seneca, Steuben, Tompkins and Yates counties, along with parts of Ontario and Tioga counties.