Five Democrats are seeking the party's nomination for the House of Representatives District 43 seat, which is being vacated by 22-year incumbent Clyde Kersey, who has decided to retire. Those vying for the nomination are Mark Bird, former Vigo County Council member and director of the county weights and measures department; Sylvester Edwards, past president of the Greater Terre Haute branch of the NAACP; Norm Loudermilk, a division chief with the Terre Haute Fire Department fire prevention bureau and former Terre Haute city council member; Chad Overton, owner of ServPro and other businesses; and Tonya Pfaff, a Vigo County School Corp. math teacher for the past 24 years.