the committee, i'm clearly not a fact witness but i hope i can give them some context and show them how strikingly like watergate what we're seeing now and as reported in the mueller report is. >> reporter: and, craig, one of the things to watch for this afternoon is, there is sort of a warning shot fired by the top republican on the committee. doug collins has told jared nadler, a reminder, if you will, of the rules of the house, which preclude members referring to this president or any president as a liar or a criminal or any of those sort of heated pieces of rhetoric that might spring from this kind of event. so republicans will try to say this is just a show, and perhaps we will see them trying to kind of view more closely to the rules if there are democrats members who make those sorts of claims. it's a little bit of a tricky situation there. those rules are long existing