MS NOW

Michigan congressman declares his independence from Republican Party

It's exceedingly rare for sitting members of Congress to change parties, which made Amash's announcement extraordinary – in more ways than one.

Justin Amash
Rep. Justin Amash, R-Mich. returns to his office on Capitol Hill in Washington on July 24, 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."