Franken: Did People In Trump World Collude With Russians To Attack Our Democracy?

MARTHA RADDATZ, THIS WEEK: Do you think there is anything wrong meeting with the ambassador?

SEN. AL FRANKEN: There could be. There could be. But why offer that you didn't meet with him unless there is something wrong? And look, this is about did people in the Trump campaign or his business associates, the whole world surrounding Trump, did they collude with the Russians to attack our democracy? That is an enormous, an enormous issue. That's something we need to get to the bottom of. We need a special prosecutor.