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DEVELOPING: Source tells NBC News that Israel has carried out an operation inside Iran

McCain refuses to stop using phrase 'illegal immigrant'

07:37

Sen. John McCain says he refuses to stop using the word "illegal" when referring to undocumented immigrants. McCain isn't exactly helping the Republicans with their "new and improved" messaging. Nia-Malika Henderson of The Washington Post and Mark Leibovich of The New York Times Magazine join Alex Wagner to discuss that and more.