CBS
During the show, Colbert showed a photo of Scaramucci and former White House chief of staff Reince Priebus, who also left the administration amid loud rumors he and Scaramucci were not getting along.
That feud reached a boiling point last month when Scaramucci accused Priebus of leaking information on the inner workings of the White House in a profanity-laced tirade captured during an interview with the New Yorker's Ryan Lizza.
"Were you brought in just to get rid of [Reince Priebus] and Sean Spicer," Colbert asked.
Scaramucci began: "I don't wanna say it that way. I would say -"
"Say it like The Mooch, say it like The Mooch," Colbert chided. "Give me some Mooch, give me some Mooch, here."
"So The Mooch [of] Long Island would say there was no love lost there," Scaramucci said, amid a raucous applause. "Obviously, look at the picture."
CBS
"The weird thing about my relationship with Reince is we were actually pretty good friends when I was a political donor writing checks to the [Republican National Committee]," Scaramucci said.
"But once I became part of the administration or was about to enter the administration, for whatever reason, it was a little more adversarial."
Colbert pressed Scaramucci on his thoughts toward White House chief strategist Steve Bannon, who Scaramucci has publicly criticized in recent days.
"Is Steve Bannon a leaker," asked Colbert.
"I said he was, and I obviously got caught on tape saying he was, so I have no problem saying that," Scaramucci replied.
"If it was up to me, he would be gone," continued Scaramucci. "But it's not up to me."
Scaramucci left his multibillion dollar investment firm in the hopes of landing a job in the Trump administration earlier this year. He was hired as the White House's communications director last month. His tenure was short-lived, however. He was forced out 10 days later, after his explosive New Yorker interview was published.
Watch the clip here:
TONIGHT: Anthony #TheMooch @Scaramucci is here and he's revealing who he would front-stab if he was still in the White House. #LSSC pic.twitter.com/sEljprdlH1
- The Late Show (@colbertlateshow) August 15, 2017