from these hearings? liz cheney: there are several things, but one is that there was a very sophisticated multi-part plan overseen by donald trump to attempt to overturn the election. no president in our history has ever done anything even close to that before. jake tapper: vice chair liz cheney, one of just two republicans on the committee, has spent the last year bucking her party and helping investigate donald trump's sophisticated multi-part plan. the first piece the committee focused on were the lies. donald trump: mail ballots are a very dangerous thing for this country because they're cheaters. jake tapper: in the lead up to the election, donald trump had been talking about the possibility of widespread voter fraud for months. donald trump: voting by mail is wrought with fraud. people steal them out of mailboxes. jake tapper: looking back, it's clear he was laying the groundwork for this. donald trump: this is a fraud on the american public. this is an embarrassment to our country. we were getting ready to win this election.