MSNBC Live with José Díaz-Balart 03/16/15

Senate Republicans ‘triple down’ on letter to Iran

A new round of talks are underway in Geneva amidst reports that the U.S. and Iran are close to a nuclear agreement, but Secretary Kerry says the deal could still be derailed thanks to Senate Republicans’ letter to Iran. NBC’s Mark Murray discusses. ... more Duration: {{video.duration.momentjs}}