issuing invalid subpoena weakens their power, not if somebody votes against it. he has the right to go to the court, to see if he has executive privilege or not. i don't know if he does or not, but neither does the committee. so, they're weakening the power of congress itself by issuing invalid subpoena. >> just because you say the word "invalid subpoena" three times, does that make it invalid? >> why, yes, it's a little known legal rule. no, of course not, alisyn, and you know, the validity of it could not be more in question. the focus on bannon, by the way, and also next scavino shows that the committee is really interested in knowing just what trump knew and when he knew it because bannon famously is not only predicting or knowing what's happening the next day, he's in continual conversation with the then-president of the united states. so it's an obvious topic for the committee to pursue, and by the way, bannon's executive privilege claim is all wet. he wasn't even in the executive