very few come in their quest for evidence. last week, when we were talking about this issue, we had a former doj attorney on the couch and he was saying there is a big difference between what the committees can do in the house now and what they would be able to get under impeachment charges. or, an impeachment investigation. they get more power to get a lot more of those documents. when you have jerry nadler saying, "it is our job to investigate and to go after," they are going to want that extra power to go after whatever they think is the insufficient evidence. because the invocation there is that there was evidence but there is insufficient. >> capri: from what i took from that, is that it was on the conspiracy claim. but essentially -- >> katie: it doesn't matter. >> capri: under the underlying aspect of going to come he basically said he tried to prove a negative. >> katie: but they will go after it. >> guy: on the collusion piece of this, mueller -- as democrats