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.
House District 59: Rep. Mike Sanders, R-Kingfisher, won 94.9 percent of the vote to beat Rodney Hiebert, of Taloga, who was photographed wearing a swastika.
House District 63: Rep. Don Armes, R-Faxon, won 79.1 percent of the vote to beat B.L. Cozad Jr., of Indiahoma
House District 100: Rep. Elise Hall, R-Oklahoma City, won 65.2 percent of the vote to beat Jeff Renner, of Oklahoma City.
Other incumbents winning Tuesday who will advance to the Nov. 6 general election were Reps. Aaron Stiles, R-Norman; Gary Banz, R-Midwest City; and James Lockhart, D-Heavener.
Incumbents who were ahead in their bids for another term were Rep. Donnie Condit, D-McAlester, who had won 64.9 percent of the vote with 38 of 39 precincts reporting; Rep. Glen Mulready, R-Tulsa, who had won 60.8 percent of the vote with nine of 14 precincts reporting; Rep. Weldon Watson, R-Tulsa, the chairman of the House GOP caucus, who had won 73 percent of the vote with 15 of 20 precincts reporting; and Rep. Sally Kern, R-Oklahoma City, who had won 73.3 percent of the vote with 14 of 15 precincts reporting. All would win another term because they faced no opposition in November.
Leading in his bid to advance to the Nov. 6 general election was Rep. Sean Roberts, R-Hominy, who had won 51.1 percent of the vote in a three-way race with 16 of 20 precincts reporting.
After Tuesday's election results, 67 of the 101-member House of Representatives are known. Already, 52 incumbents won another two-year term automatically because no one filed against them.
Two newcomers also won without opposition.
Kevin Matthews, a Democrat from Tulsa, won the House District 73 seat that covers Osage and Tulsa counties. He will succeed Rep. Jabar Shumate, D-Tulsa, who didn't seek re-election so he could run for a state Senate seat. Jon Echols, a Republican from Oklahoma City, won the House District 90 seat. He will succeed Rep. Charles Key, R-Oklahoma City, who couldn't seek re-election because of 12-year legislative term limits.
They and the others elected to serve in the 54th Legislature, which begins next year, will be sworn into office in mid November.
Republicans, who had a 67-31 advantage when this year's session adjourned in late May, will have a 47-20 majority after Tuesday's election results. The 34 other seats will be filled in the Nov. 6 general election.