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GOP moderates failing put-up-or-shut-up challenge

Better flip than flop?

Rep. Devin Nunes, R-Calif.
Rep. Devin Nunes, R-Calif., at the House Permanent Select Committee on Intelligence regarding NSA surveillance in Washington, Tuesday, June 18, 2013.AP

Steve Benen is a producer for "The Rachel Maddow Show," the editor of MaddowBlog and an MS NOW political contributor. He's also the bestselling author of "Ministry of Truth: Democracy, Reality, and the Republicans' War on the Recent Past."