The former U.S. attorney for the Southern District of NY also said Trump called him again the day before firing Bharara and 45 USA attorneys, but Bharara said he felt that it would be inappropriate to return the call, and reported to the attorney general's office that Trump was "trying to cultivate some kind of relationship". "It's also true ... that there's no basis to say there was no obstruction".
Preet Bharara told ABC News' This Week he felt the calls from Mr Trump had crossed the usual boundary separating the executive branch and independent criminal investigators.
Bharara said it was a very "weird and peculiar" thing for the President to have a one-on-one conversation with a person has been asked to investigate various things and is in a position hypothetically to investigate business interests and associates of the President. "It appeared to be that he was trying to cultivate some kind of relationship", Bharara said, adding that Comey's account of his calls with Trump "felt a little bit like deja vu".
The former federal employee detailed three phone calls initiated by Trump that made him feel "a bit uncomfortable", while the latter was president-elect and when he became president.
Bharara said it's "reasonable" to assume Mueller is looking at the obstruction issue among others as part of his investigation. "And 22 hours later I was asked to resign along with 45 other people", Bharara said.
The recollections add a new dimension to the intensifying debate over Trump's firing of former Federal Bureau of Investigation director James B. Comey, who was removed from his job after private conversations with Trump that he viewed as inappropriate.
Meanwhile, Susan Collins, the Republican senator from ME, said a subpoena of Trump might be appropriate if he has recordings of his converations with James Comey but does not provide them.
With Comey's testimony at the Senate Intelligence Committee hearing last Thursday, Preet said the phone calls are even more troubling. It was similar to what Jim Comey testified to with respect to a call he got when he was getting on the helicopter.
The former USA attorney for the Southern District of NY was responding to a question from ABC News Chief Anchor George Stephanopoulos in an exclusive interview on "This Week" Sunday. It is common for new presidents to ask for the resignation of US attorneys appointed by a predecessor, and he was one of 46 asked to step down.