MSNBC Live with Tamron Hall 01/07/16

Trump resurrects ‘birther’ attack on Cruz

Republican frontrunner Donald Trump is stepping up his attacks on rival Ted Cruz by continuing to question his citizenship. Now other prominent Republicans, including Senator John McCain are piling on, but Cruz is pushing back. NBC’s Katy Tur reports the latest and MSNBC’s Steve Kornacki talks about what’s next for Cruz’s “birther” story. ... more Duration: {{video.duration.momentjs}}