>> reporter: kate, the chairman in this letter released this morning, he tells mark meadows, the former chief of staff, that the committee has no choice but to advance criminal contempt proceedings against him given that he's decided to no longer cooperate with the committee. he's going to recommend that the body in which meadows once served must refer him for criminal prosecution. interestingly, kate, the letter reveals new details about the previous correspondence between meadows and the committee. for the first time they go integrator detail about what exactly he's voluntarily turned over to the committee. it includes an email discussing the appointment of an alternate slate of electors as part of a, quote, direct and collateral attack after the election. another email references a 38-page powerpoint briefing entitled "election fraud, foreign interference and options for january 6th" that was to be provided on the hill.