Trump ex-lawyer hints could flip against US president

Donald Trump's former personal lawyer, facing potential arrest in New York, has declared his first loyalty is to his family and the country, signalling a willingness to cooperate with prosecutors against the president.

"To be crystal clear, my wife, my daughter and my son, and this country have my first loyalty," Michael Cohen told ABC News in an interview broadcast today.

His remarks fanned speculation about whether Cohen has any incriminating material on Trump and whether he will "flip" on his former boss, with remarks sharply at odds with a past declaration that he would "take a bullet for the president."