(CNN) President Donald Trump's personal attorney Michael Cohen has indicated to family and friends he is willing to cooperate with federal investigators to alleviate the pressure on himself and his family, according to a source familiar with the matter.

Cohen has expressed anger with the treatment he has gotten from the President, who has minimized his relationship with Cohen, and comments from the President's lawyer Rudy Giuliani, the source said. The treatment has left him feeling isolated and more open to cooperating, the source said.

Asked by reporters Friday if he was worried about Cohen cooperating, Trump said, "I did nothing wrong, nothing wrong." He also said he hasn't spoken with Cohen "in a long time," adding, "I always liked Michael and he's a good person."

CBS News reported Thursday that Cohen believes Trump and his allies are turning against him.

Cohen is under criminal investigation by the US attorney's office in Manhattan for his personal financial dealings, including the payment he made to porn star Stormy Daniels on Trump's behalf before the election.

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