Washington • During his testimony Wednesday on Capitol Hill, President Donald Trump’s former fixer and attorney Michael Cohen submitted copies of checks that Trump, his son, Donald Trump Jr., and the COO of the Trump Organization made to him - evidence intended to support Cohen’s claim that the president engaged in possible criminal conduct while in office.

Cohen provided a copy of a check that he says was personally signed by Trump in 2017, to reimburse him for paying off Stormy Daniels, an adult-film actress who had alleged having an affair with Trump.

(Obtained by The Washington Post) A $35,000 check that Michael Cohen provided to Congress.

"I am providing a copy of a $35,000 check that President Trump personally signed from his personal bank account on Aug. 1 of 2017 - when he was President of the United States - pursuant to the cover-up, which was the basis of my guilty plea, to reimburse me - the word used by Mr. Trump's TV lawyer - for the illegal hush money I paid on his behalf. This $35,000 check was one of 11 check installments that was paid throughout the year, while he was President," Cohen said at a House Committee on Oversight and Reform hearing.

Cohen also mentioned a second $35,000 check, dated March 17, 2017, this one signed by Donald Trump Jr. and Trump organization chief operating officer Allen Weisselberg - "to reimburse me for the hush money payments," he told the committee.

(Obtained by The Washington Post) A second $35,000 check that Michael Cohen provided to Congress.

That check offers the first evidence that the president's son may also have been involved with the reimbursement scheme.