Rep. Tim Huelskamp (R-Kan.) is projected to lose his GOP primary, making him the fourth House incumbent this cycle to be defeated in a primary.

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The race was close after polls closed, and Huelskamp's campaign asked the media to leave its watch party in Hutchinson, Kan., as it waited for results, according to The Associated Press . The AP called the race close to 11:30 p.m.

Conservative groups that are typically allies found themselves on opposite sides of the Kansas primary fight.

But the Kansas Republican received support from the Club for Growth and the network of conservative donors helmed by billionaires Charles and David Koch.

New York Times chief Washington correspondent Carl Hulse tweeted a picture of Boehner enjoying a glass of red wine as he awaited a final result.