Big questions for former White House communications director Anthony Scaramucci

ABC News' George Stephanopoulos will interview Anthony Scaramucci Sunday.

From ABC News Political Director Rick Klein: "At one point in your brief tenure, you said you would 'fire everybody' in the White House communications shop to stop leaks. Does that still need to happen?"

Speaking to reporters outside the West Wing at one point in July, Scaramucci explained his plan to cut down on the leaks coming from the White House staff. “I’m going to fire everybody, that’s how I’m going to do it," he said, “You’re either going to stop leaking or you’re getting fired.”

Klein says he would follow up by trying to determine if the problem is localized to the communications shop, posing the question, “Is this really a staff problem, or is it a cultural problem at the White House?”

From ABC News Political Analyst Matthew Dowd: "You said you’re the president’s 'biggest fan' but you once called him a 'hack politician' and 'anti-American' -- what changed?"

During an appearance on Fox Business in 2015, Scaramucci called Trump a “hack politician” and said that his comments made during the campaign at that point were “anti-American” and “very, very divisive.”

In his first press briefing after it was announced that he would be taking over as communications director, Scaramucci apologized for the comments he made.

“One of the biggest mistakes that I made because I was an unexperienced person in the world of politics, I was supporting the other candidate," Scaramucci said. "I should have never said that about him."

From Republican strategist Alex Castellanos: "We’ve seen good people rise to the highest levels of government and let power go to their head -- did your ego get the best of you? Is the president’s ego a problem?"

The president selected the four-star general because he felt that his team needed a chief of staff who could help bring order to the West Wing and push his legislative agenda forward, White House officials told ABC News.

"Listen, the president firmly felt that Anthony's comments were inappropriate for a person in that position, and he didn't want to burden Gen. Kelly also with that line of succession," Sanders said the day of Scaramucci's resignation. "Gen. Kelly has the full authority to operate within the white house and all staff will report to him."

From ABC News Political Commentator Cokie Roberts: "Was the White House just a completely different world from anything you had ever experienced?"

Scaramucci’s brief but busy tenure in the White House begs the question: Did the reality of his West Wing role vary from his expectations for it?