Former Trump attorney Michael Cohen departs after testifying behind closed doors before the Senate Intelligence Committee on Capitol Hill in Washington, February 26, 2019. Carlos Barria | Reuters

President Donald Trump's former personal lawyer Michael Cohen plans to deliver explosive testimony before House lawmakers on Wednesday, according to a draft copy of his opening remarks. Trump's former fixer, who once said he would take a bullet for the president, is set to say he is remorseful about his "misplaced loyalty" to Trump. "I am ashamed that I chose to take part in concealing Mr. Trump's illicit acts rather than listening to my own conscience," Cohen plans to say on Wednesday. "I am ashamed because I know what Mr. Trump is. He is a racist. He is a con man. He is a cheat."

Hush-money payments

Cohen's testimony says he will show "a copy of a check Mr. Trump wrote from his personal bank account – after he became president - to reimburse me for the hush money payments I made to cover up his affair with an adult film star and prevent damage to his campaign." Trump, Cohen says, personally signed the check, dated August 2017, while he was president.

Another check presented as evidence shows a March 2017 payment co-signed by Donald Trump Jr. and Allen Weisselberg, the CFO of the Trump Organization.

WikiLeaks

Cohen's public testimony before the House Oversight Committee is expected to include a series of remarkable allegations about the presidential campaign. In the text of his planned statement, obtained by NBC News, Cohen will say Trump was told by Roger Stone that WikiLeaks would publish emails stolen from the Democratic National Committee and Hillary Clinton's campaign. "In July 2016, days before the Democratic convention, I was in Mr. Trump's office when his secretary announced that Roger Stone was on the phone. Mr. Trump put Mr. Stone on the speakerphone," Cohen is expected to say. "Mr. Stone told Mr. Trump that he had just gotten off the phone with Julian Assange and that Mr. Assange told Mr. Stone that, within a couple of days, there would be a massive dump of emails that would damage Hillary Clinton's campaign." "Mr. Trump responded by stating to the effect of 'wouldn't that be great,'" Cohen's prepared remarks state.

'Disgraced felon'