Sen. John Cornyn (R-TX) draws conservative primary challenger Rep. Steve Stockman

Yet another Republicans Senator is being challenged for not being conservative enough. Just before the deadline Rep. Steve Stockman filed papers to run against Sen. John Cornyn in the Republican primary for senator from Texas.

Stockman is one of the most conservative members of the House having pushed for President Obama’s impeachment. He told WND that he is getting in the primary because Cornyn, “undermined Sen. Ted Cruz’s fight to stop Obamacare.”

Stockman has an uphill battle in front of him since Cornyn has a substantial war chest, but even if he doesn’t win this move could have real policy implications beyond Texas. Cornyn is the second ranking Senate Republican. With Senate Minority Leader Mitch McConnell also fighting off his own primary challenge this means both of the top Republican leaders in the Senate are probably going to spend the next several months proving that they are conservative enough. This should continue to push the entire GOP rightward for the next year and make the possibility of any big deals with President Obama highly unlikely.

The right wing of the party doesn’t need to win every primary to have influence. The mere fact they’ve proven they are so willing to wage a fight is enough to change the political calculations for many current legislators.