it's also a phone log of text messages but it is not the substance or content of the calls or messages. it is, however, a critical investigative tool as the committee pieces together really a roadmap of who was communicating with whom before, during, and after january 6th. >> as mentioned before, the former president's one-time lawyers and advisers have bals al also been subpoenaed. what is the committee hoping to learn from them? and any sense whether they will comply? >> i think the chances are slim to none of any four complying, maybe none to none. but the committee is making a record. they are -- they are saying these are critical witnesses and when you look at these four names, they are all involved in perpetuating the big lie. and at least two of them -- giuliani and boris -- were at the willard hotel on january 5th, the night before in that war room. we understand, communicating