this election. frankly, we did win this election. reporter: donald trump s false claim that he won the election before all the votes were counted, a lie he continues to peddle but one the january 6th committee didn t believe, like his attorney general. he had become attached from reality if he really believes this stuff. reporter: his campaign manager. i didn t think what was happening was necessarily i remember tell being him i didn t believe the dominion allegations. what they were proposing i thought was nuts. the theory was also completely nuts. reporter: trump s assertion that he won the election is at the core of the committee s argument that he purposely and criminally worked to prevent the i told him that the claims of fraud wiere bullshit. bill stepien was supposed to testify live but when his went into labor, he bowed out. did anybody who was a part of that conversation disagree with your message? yes. who was that? the president disagr
this election. frankly, we did win this election. reporter: donald trump s false claim that he won the election before all the votes were counted, a lie he continues to peddle but one the january 6th committee didn t believe, like his attorney general. he had become attached from reality if he really believes this stuff. reporter: his campaign manager. i didn t think what was happening was necessarily i remember tell being him i didn t believe the dominion allegations. what they were proposing i thought was nuts. the theory was also completely nuts. reporter: trump s assertion that he won the election is at the core of the committee s argument that he purposely and criminally worked to prevent