Trump Organization financial chief Weisselberg 'given immunity'

Cohen also said Trump directed him to pay off two women who said they had affairs with Trump, payments that prosecutors say were in violation of campaign finance laws.

Trump then said the hush payments were financed with his own money - to which Cohen had access - and that while he had no knowledge of them at the time, he had since been fully transparent.

The Manhattan District Attorney's office is trying to determine what role the organization may have had in the arrangement of a payment Michael Cohen made to Stormy Daniels, the adult-film actress who said she had a sexual relationship with Donald Trump.

Former White House aide Omarosa Manigault NewmanOmarosa Onee Manigault NewmanOmarosa: I'm ready to testify at Trump impeachment trial The Hill's Morning Report: Trump's allies turn against him Sales of Omarosa book surged after Trump attacks MORE wrote in her tell-all memoir that Melania Trump used her fashion choices to "punish" the president.

He said possible investigations include on Trump's "contact with the Russians, and including his tax returns, which the American people have not seen but I promise a Democratic majority will ensure that they do see".

But Axios reported Thursday that Cohen, in closed-door hearings with Congress past year, said he was unsure if Trump knew about the meeting with Natalia Veselnitskaya.

Trump and Cohen had long stopped speaking, but word would get back to the lawyer that the president was belittling him.

The referral request was first reported by The New York Times.

Other major dominoes have fallen since, as National Enquirer CEO David Pecker and Weisselberg have both received immunity for useful information on these on payments. Weisselberg was also treasurer of The Donald J. Trump Foundation, the president's nonprofit, which has been sued by the NY attorney general for alleged violations of state law.

Asked if he would fire Mueller if that were to happen, Trump responded: "I can't, I can't answer that question because I don't think it's going to happen".

Those were guiding principles for Cohen when he served as more than just a lawyer for Trump during the developer's rise from celebrity to president-elect. Cohen has indicated he may cooperate with that inquiry. He said recently he knew about payments "later on". The money covered the $130,000 payment to Daniels plus costs and fees, a bonus for Cohen, and money to cover his tax liability.

Additional key players, including Trump's long-time CFO, Allen Weisselberg, and American Media head David J. Pecker, have also begun to cooperate with Mueller.

"It means that Individual-1 needs a real lawyer", he said.

Trump has repeatedly denied there was collusion and has labelled the Mueller probe a "witch hunt".