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Ex-U.S. attorney Preet Bharara said Trump phone calls made him uncomfortableby Circa News

In his first sit-down interview, Preet Bharara said president Donald Trump's calls made him uncomfortable.

The ex-U.S. attorney told ABC News anchor George Stephanopoulos on ABC’s "This Week" Sunday, that Trump called him on two occasions to "shoot the breeze."

It was a third call from Trump in March that would be Bharara's last as attorney for the Southern District of New York. Bharara said he decided not to take the call, because he felt it was inappropriate. He was fired the next day.

Mark Corallo, a spokesman for one of Trump's attorneys, tweeted this Sunday.

"It’s a very weird and peculiar thing for a one-on-one conversation, without the attorney general, without warning, between the president and me or any United States attorney who has been asked to investigate various things," Bharara said in the interview.

In March, Bharara was one of 46 U.S. attorneys asked to resign by the Trump administration.

However, Bharara refused to submit his resignation, so he was fired on March 11, a Saturday.

Watch Bharara's interview on ABC News here.