2012 With incumbent Republican Representative Mark Kirkeby running for South Dakota Senate and leaving a District 35 seat open, Kopp ran in the three-way June 5, 2012 Republican Primary and placed first with 712 votes (48.3%);[4] in the four-way November 6, 2012 General election, Kopp took the first seat with 4,305 votes (34.63%) and fellow Republican nominee Blaine Campbell took the second seat ahead of Democratic nominees Shane Liebig (who had run for Senate in 2008) and Jay Pond[5] (who had run for the seat in 2010 as an Independent).
2008 When District 35 incumbent Republican Representative Jeffrey Haverly ran for South Dakota Senate and left a District 35 seat open, Kopp ran in the three-way June 3, 2008 Republican Primary and placed second with 655 votes (38.5%);[6] in the four-way November 4, 2008 General election incumbent Republican Representative Mark Kirkeby took the first seat and Kopp took the second seat with 3,893 votes (28.23%) ahead of Democratic nominees Fern Johnson and Curtis Marquardt.[7]
2010 Kopp and incumbent Representative Kirkeby were unopposed for the June 8, 2010 Republican Primary[8] and won the four-way November 2, 2010 General election, where Representative Kirkeby took the first seat and Kopp took the second seat with 2,871 votes (28.07%) ahead of Democratic nominee Sharon Green and Independent candidate Jay Pond.[9]