Education
Tidemann earned his BS and MS from the South Dakota State University.Elections
State House of Representatives
*2004 When House District 7 incumbent Republican Representative Orville Smidt ran for South Dakota Senate, Tidemann and incumbent Republican Representative Sean O'Brien were unopposed for the June 1, 2004 Republican Primary and won the four-way November 2, 2004 General election where Representative O'Brien took the first seat and Tidemann took the second seat with 4,696 votes (27.81%) ahead of Democratic nominees Roger Prunty and Rich Widman, who had run for the seat in 2000. *2006 When House District 7 incumbent Republican Representative O'Brien left the Legislature and left a District 7 seat open, Tidemann and Carol Pitts were unopposed for the June 6, 2006 Republican Primary and won the four-way November 7, 2006 General election where fellow Republican nominee Pitts took the first seat by 11 votes and Tidemann took the second seat with 4,585 votes (32.08%) ahead of Democratic nominees Robert Klein and Joshua Horton. *2008 Tidemann and incumbent Republican Representative Pitts were again unopposed for the June 3, 2008 Republican Primary, and won the four-way November 4, 2008 General election where Tidemann took the first seat with 5,428 votes (32.05%) and incumbent Representative Pitts took the second seat ahead of Democratic nominees Steve Binkley and Abigail Howell. *2010 To challenge Senate District 7 incumbent Democratic Senator Pam Merchant, Tidemann was unopposed for the June 8, 2010 Republican Primary and won the November 2, 2010 General election with 4,289 votes (54.15%) against Democratic Senator Merchant.State Senate
*2012 Tidemann and Democratic former Senator Pam Merchant were both unopposed for their June 5, 2012 primaries, setting up a rematch; Tidemann won the November 6, 2012 General election with 4,362 votes (53.52%) against Senator Merchant.References
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