Former White House communications director Anthony Scaramucci Anthony ScaramucciFormer DeVos chief of staff joins anti-Trump group Scaramucci to Lemon: Trump 'doubling down' on downplaying virus 'should scare' viewers Sunday shows - Leaked audio of Trump's sister reverberates MORE urged acting White House chief of staff Mick Mulvaney Mick MulvaneyOn The Money: House panel pulls Powell into partisan battles | New York considers hiking taxes on the rich | Treasury: Trump's payroll tax deferral won't hurt Social Security Blockchain trade group names Mick Mulvaney to board Mick Mulvaney to start hedge fund MORE to step down and "go to confession" after a tumultuous week for the Trump administration.

During an appearance on CNN's "New Day," Scaramucci was asked by anchor John Berman what advice he would give to Mulvaney after the chief of staff appeared to admit to the existence of a quid pro quo between President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE and Ukraine's president over the issues of military aid and an investigation into former Vice President Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE.

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"If I were giving Mick Mulvaney advice, [if I were him] I would resign, I would get myself a really good lawyer, because you're going to have to explain a lot of things," Scaramucci said.

"What I would say to Mick, is, you're a good Catholic — resign, go to confession, OK, then let's rebuild your career from here," he added.

Former WH communications director Anthony @Scaramucci says his advice for Mick Mulvaney is to "resign. Go to confession."

Mulvaney stands on shaky ground, according to a source, following his comments last week admitting Trump engaged in a quid pro quohttps://t.co/M7Z3AizJcJ pic.twitter.com/PEueeLt4H1 — New Day (@NewDay) October 21, 2019

Scaramucci, who served just ten days in the Trump administration before himself resigning after an explosive tirade to a reporter was published, has in recent weeks become a vocal critic of the White House amid Democrats' impeachment inquiry over the growing Ukraine scandal.

In August, he said it was "pretty obvious" that he would not support Trump's reelection while accusing the president of sounding "nonsensical" before the American public.

Critics of the White House argue that Trump's attempts to persuade Ukraine's president to investigate Biden represent an abuse of power and an attempt to spur a foreign power to interfere in a U.S. election.