Three other House members won Tuesday and a fourth was leading to advance to the Nov. 6 general election.
Liebmann, who was elected to the House in 2004 and was endorsed by Gov. Mary Fallin, lost to political newcomer Mike Turner, of Edmond. With all precincts reporting, Turner won 55.8 percent of the vote to Liebmann's 44.2 percent.
Liebmann, 75, a retired business owner, served 10 years on the Oklahoma City Council before winning election to the House District 82 post.
Turner, 25, an investor, sought his first political office. He will be sworn in as a member of the House of Representatives in mid November.
“We're excited that the voters in our district believe in Mike and are willing to give him a chance to represent them at the Capitol,” said Stephen Paulsen, co-chairman of Turner's campaign.
“We communicated a message of new energy, fresh ideas and strong conservative leadership for northwest Oklahoma City/west Edmond,” Turner said in a statement. “It was a message the people embraced and one I plan to deliver on in office.”
Turner thanked Liebmann for his long record of public service.
Rep. Marian Cooksey, R-Edmond, beat back a stiff challenge from Bob Dani, of Edmond. Dani, who founded the High Noon Club, which is made up of mostly social conservatives, was seeking his first political office. He had said Cooksey, who was elected to the House in 2004, was not conservative enough.
Cooksey won another two-year term representing House District 39 by winning 54.4 percent of the vote. Cooksey, who called herself a lifelong conservative, said she is glad voters listened to her and looked at her record instead of information that was disseminated by her opponent and his supporters.
“The information that was put out there was false information,” she said. “I think the voters were misled with the information that he put out there.”
Cooksey was endorsed by Lt. Gov. Todd Lamb, which she said helped her re-election bid.
Cooksey is one of six House members re-elected Tuesday because no Democrat or independent filed for the posts.
Other House members re-elected are:
House District 25: Rep. Todd Thomsen, R-Ada, won 73.2 percent of the vote to beat Donald Cole Gallup, of Ada.
House District 49: Rep. Tommy Hardin, R-Madill, won 89.2 percent of the vote to defeat Samuel Dishmon, of Madill.
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