Comey slaps back at Trump's Sunday Twitter freakout : 'My book is about ethical leadership'

Former FBI Director James Comey, who was on the receiving end of President Donald Trump's angry tweets on Sunday morning, hit back at the president by suggesting that he was the antithesis of "ethical leadership."

Although he didn't specifically name Trump in his tweet, his implication was clearly that the current president lacks the ethics needed to faithfully execute the duties of his office.

"My book is about ethical leadership and draws on stories from my life and lessons I learned from others," writes Comey. "Three presidents are in my book: Two help illustrate the values at the heart of ethical leadership; one serves as a counterpoint. I hope folks read the whole thing and find it useful."

Trump went on an absolute rampage against Comey on Sunday morning, as the president called his former FBI director a “slimeball” who should go to “jail” and who wrote “FAKE” memos aimed at tearing down his presidency.

Comey's book, "A Higher Loyalty," is set to release on April 17.