about all of this, ellison barber is there. reporter: neil, president trump continues to say that he believes he is being treated unfairly here, and he continues to deny allegations of in propriety. president trump: no, no, no, let me tell you. i m only interested in corruption. i don t care about politics. i don t care about biden s politics. i never thought biden was going to win. this is about corruption, and this is not about politics. this is about corruption. reporter: the impeachment inquiry directly reached the white house yesterday evening, when those three democratic committee chairman subpoenaed for documents related to communications between president trump and the president of the ukraine, the chairman says president trump forced their hand here after ignoring a september 9 request for document s. sources tell fox news the president is set to send a letter to house speaker nancy pelosi on monday, telling her the white house will not hand