R.I.P. Republican Credibility: Why Their Latest Blatant Lies Show They've Given Up

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Senator Ted Cruz, a Republican from Texas, speaks during an interview in Washington, D.C., U.S., on Thursday, Jan. 30, 2014. Cruz vowed to use a debate over raising the federal debt ceiling as leverage to extract a new round of U.S. spending cuts, even as House Speaker John Boehner told reporters that defaulting would be 'the wrong thing' for the country. Photographer: Andrew Harrer/Bloomberg via Getty Images | Bloomberg via Getty Images

From Obamacare to Keystone, here's why they're no longer a legitimate entity that deserves to be taken seriously

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