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Backlash builds on GOP's Iran letter
The somewhat unprecedented move by Republicans to write a letter to Iran has built into a longer controversy than some of those who signed the letter expected. NBC's Frank Thorp and Politico's Burgess Everett join Carrie Dann.
Bresnahan:Newt Gingrich was most important rep09:08
Inside Paul Ryan’s media plan08:44
GOP Whip on Obama’s ISIS strategy04:22
Rep. McCaull on terror threats facing U.S.07:57
GOP plans next move at congressional retreat07:59
Infighting grows among GOP candidates13:39