"The real story is a very small number of them, however this shakes out, are going to be deemed to have been privileged and the vast majority of them will go to federal prosecutors and that can not be good news for President Trump because Michael Cohen was involved in some of the most sensitive dealings that Donald Trump had over the last decade", he continued. "Then I read his words published on July 2, and I recognized his sincerity", Davis said in a statement. He claims that he saw through the interview.
Cohen has made moves to separate himself from Trump, stripping his Twitter profile of reference to the president.
A second friend who is in frequent touch with Cohen also told CNN that they have discussed the possibility of a pardon, and that it is clear that Cohen is not "counting on it".
Davis' announcement comes at a critical time for Cohen, as a court-ordered review of material seized in a April raid of Cohen's offices and home is nearing an end.
Davis joins Guy Petrillo, a former federal prosecutor in NY, who is also representing Cohen.
"Once I understand what charges might be filed against me, if any at all I will defer to my new counsel, Guy Petrillo, for guidance", he said. Trump denied reimbursing Cohen and said Giuliani needed to "get his facts straight".
In the past few weeks, Cohen seemed to be sending Trump signals regarding whether he planned to cooperate with authorities.
Soon after the Federal Bureau of Investigation raid, Trump seemed to raise the prospect that the government was seeking to turn Cohen into a witness against him.
An advance clip shows Cohen asking former US Vice President Dick Cheney to sign a "waterboard kit" (a jug of water).