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Trump lashes out at Comey in Sunday tweetstorm

President TrumpDonald John TrumpCorker: US must determine responsibility in Saudi journalist's death Five takeaways from testy Heller-Rosen debate in Nevada Dem senator calls for US action after 'preposterous' Saudi explanation MORE tore into James ComeyJames Brien ComeyFormer FBI lawyer speaks with House lawmakers on Rosenstein, 2016 Emmet Flood steps in as White House counsel following McGahn departure McGahn departs as White House counsel MORE in a series of tweets on Sunday morning, the same day ABC is scheduled to air an interview with the former FBI director fired by the president a year ago

Trump called Comey a slime ball and accused him of making decisions based on the fact that he assumed Hillary ClintonHillary Diane Rodham ClintonRepublicans bail on Coffman to invest in Miami seat Katy Perry praises Taylor Swift for diving into politics Election Countdown: Small-donor donations explode | Russian woman charged with midterm interference | Takeaways from North Dakota Senate debate | O'Rourke gives 'definitive no' to 2020 run | Dems hope Latino voters turn Arizona blue MORE would win the 2016 election.

"Unbelievably, James Comey states that Polls, where Crooked Hillary was leading, were a factor in the handling (stupidly) of the Clinton Email probe," Trump tweeted.

"In other words, he was making decisions based on the fact that he thought she was going to win, and he wanted a job. Slimeball!"

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The comments come after Comey said in a recent interview that his assumption that Clinton, the 2016 Democratic presidential nominee, would win the election was a factor in decisions he made regarding the investigation into her private email server.

Comey said his decision to tell Congress shortly before the election that the FBI was reviewing new emails regarding the probe into Clinton's private email server was influenced by the fact he assumed Clinton would win.

"It must have been. I don’t remember consciously thinking about that, but it must have been because I was operating in a world where Hillary Clinton was going to beat Donald Trump, and so I’m sure that it was a factor,” Comey said during the interview on ABC News.

Trump's attack comes after excerpts of Comey's new book, "A Higher Loyalty: Truth, Lies, and Leadership," were released last week.

In another tweet on Sunday, Trump said "big questions" are not answered in Comey's "badly reviewed" book. 

On Friday, Trump ripped Comey as a "LEAKER & LIAR" who "should be prosecuted."

— This report was updated at 8:07 a.m.