“The Mooch” helped bring in the loot Saturday for a former congressman hoping to regain his seat after serving prison time for tax evasion.

Short-lived White House communications director Anthony Scaramucci spoke at a Staten Island fundraiser for Michael Grimm that raised an estimated $20,000.

“This is a guy with a heart of gold and a backbone of steel,” Scaramucci said. “He can convince other people how important it is to stay on the same team.”

Grimm has hammered GOP Congressman Dan Donovan for veering away from President Trump’s agenda on issues including funding for “sanctuary cities” and health care reform.

Donovan “is one of the most liberal Republicans ever,” Grimm told some 250 supporters.

After leaving office, Grimm pled guilty to concealing almost $1 million in receipts from a restaurant he co-owned and served seven months in federal prison. He claims he was railroaded by the Obama administration.