case that bob mueller wanted to handle on his own. i wanted to read you something from an aaron blake column in the washington post and get you to comment about it. he says, cohen like manafort is widely viewed as someone who could flip on trump and is under investigation for things apparently unrelated to the campaign. the obvious difference was manafort was a key figure in the campaign and had existing ties to russian interests that could conceivably be involved in the case's future. while cohen may know derogatory things about trump, manafort may be viewed as a potential collusion witness. so, joyce, give me a read on that. >> it's possible that that's the correct take. manafort could be far more central to collusion between the campaign and russia than the bank fraud and tax fraud prosecution he's currently going through would suggest. in other words, mueller could have indicted the leading edge perhaps to convince manafort to cooperate with him down the road. but manafort might still offer a great deal of help to mueller