ABC News Correspondent Ali Rogin: Paul Manafort gave his jury a grimace

Trump Campaign Chairman Paul Manafort talks to reporters on the floor of the Republican National Convention at Quicken Loans Arena, Sunday, July 17, 2016, in Cleveland. (AP Photo/Matt Rourke)

ABC News Correspondent Ali Rogin joins John to describe so far what’s unfolded in the first day of Paul Manafort’s trial. She predicts what will happen if Manafort cooperates with the Mueller investigation.