there's also the fact that this president is notorious for not putting anything in writing. doesn't text message, didn't e-mail. but he was perhaps and as we actually already know, making a lot of calls. he was working the phones that day. so those call records could be interesting. but again, the committee is searching for potentially the other side of the call records and so i think we are going to see that for a while and when the committee does escalate things to the actual former president, it is going to be a big deal and they'll be very prepared to do so. >> of course one of the most tantalizing things last week was when liz cheney suggested there might be a federal crime donald trump had committed on the basis of the text messages she released. i guess my question is obviously if she were to decide to go forward and prosecute that it would be the biggest deal of all. do you think subpoenaing donald trump is just sort of a side show that would be a waste of time or is that you think essential to the work this committee has undertaken?