“I think it's possible,” Comey said when asked if the Russians “have something” on Trump.

Sunday night meant to promote his new book “A Higher Loyalty: Truth, Lies, and Leadership.” ADVERTISEMENT Comey spoke during an interview with ABC News that airednight meant to promote his new book “A Higher Loyalty: Truth, Lies, and Leadership.”

The ousted FBI chief conceded it is a “stunning” thing to say about the president, but refused to rule it out.

“It always struck me and still strikes me as unlikely, and I would have been able to say with high confidence about any other president I dealt with, but I can’t,” Comey said.

Comey led the federal probe into Russian interference in the 2016 election before he was fired by Trump last May.

He also briefed Trump on a dossier funded by the president's political opponents that alleged the Russians have leverage on him.