President Trump fired-back at disgraced former FBI director James Comey earlier Monday; blasting the bureau chief as “not smart” and “disgruntled” over his handling of Hillary Clinton’s private email server.

Trump took to twitter to vent his frustration just hours after Comey sat down with ABC News; claiming the Commander-in-Chief was “morally unfit” to hold the office of the presidency.

“Slippery James Comey, a man who always ends up badly and out of whack (he is not smart!), will go down as the WORST FBI Director in history, by far!” Trump posted. “Comey drafted the Crooked Hillary exoneration long before he talked to her (lied in Congress to Senator G), then based his decisions on her poll numbers. Disgruntled, he, McCabe, and the others, committed many crimes!”

Slippery James Comey, a man who always ends up badly and out of whack (he is not smart!), will go down as the WORST FBI Director in history, by far! — Donald J. Trump (@realDonaldTrump) April 15, 2018

Comey drafted the Crooked Hillary exoneration long before he talked to her (lied in Congress to Senator G), then based his decisions on her poll numbers. Disgruntled, he, McCabe, and the others, committed many crimes! — Donald J. Trump (@realDonaldTrump) April 16, 2018

Comey’s comments come as the former director launches his all-out book tour promoting his recent tell-all memoir of his time inside the Trump administration.