Former White House communications director Anthony Scaramucci said Sunday that if he were advising President Donald Trump, he would tell him not to fire deputy attorney general Rod Rosenstein.

Rosenstein is overseeing the Russia investigation by special counsel Robert Mueller since Attorney General Jeff Sessions recused himself from the probe.

Democrats fear Trump could sack Rosenstein since the release of a Republican-penned memo from the House Intelligence Committee Friday alleging Justice Department surveillance abuses regarding a Trump campaign adviser.

Revealing Rosenstein was in the same section as him at Harvard Law School, Scaramucci—who served just 10 days at the White House before being fired over an expletive-laden interview with the New Yorker—said on ABC's "This Week" that Rosenstein would be fair.

"He's a great guy, and I would tell the president if I was in his presence, do not fire him," Scaramucci said. "He'll be fair and impartial. You may be upset about the politicization of what happened, but I don't think it came from him."

"He's a good guy. I hope the president doesn't fire him," he added.

Trump approved the release of the memo this week and said a lot of people should feel "ashamed." He wouldn't say Friday whether he would dismiss Rosenstein or still had confidence in him.

"You figure that one out," Trump told reporters.