10.16.2019 - By CNN
The insiders are finally telling their stories. A series of high-ranking diplomats take to Capitol Hill this week to shed light on the Trump administration's Ukraine dealings. Will any of Trump's allies turn on him? Meanwhile, federal investigators are reportedly engaged in a counterintelligence probe of Rudy Giuliani. CNN political director David Chalian is joined by CNN senior Washington correspondent Joe Johns and impeachment lawyer Ross Garber.