Democrats moving to zero in on Trump-Ukraine details

Despite efforts to stop diplomats from testifying, it appears that John Bolton may be right - the pin is pulled and the Rudy Giuliani hand grenade could be about to blow. NBC News Correspondent Geoff Bennett, Politico Senior Writer Jake Sherman, New York Times Chief White House Correspondent Peter Baker and Reuters White House Correspondent Jeff Mason join Katy Tur to discuss.Oct. 15, 2019