A group of wealthy donors is preparing to draft retired Marine Gen. James "Mad Dog" Mattis to run for president and taken down Donald Trump, according to reports.

Nearly a dozen donors are willing to throw their resources behind the former head of U.S. Central Command. The group has delivered six memos to Mattis outlining how he could win the race in the hope that it will encourage him to run, the Daily Beast reported.

The game plan would be for Mattis to win enough states to keep Trump and Hillary Clinton from getting the 270 electoral votes needed to win the presidency. The House would then pick the president, and supporters believe lawmakers would support a former general widely seen as an American hero.

A "Gen. James Mattis for President 2016" unofficial Facebook page has more than 4,000 likes.

Mattis served in the Marine Corps for 42 years, including as the head of American forces in the Middle East from 2010 to 2013, when he retired. He now serves as a Davies Family Distinguished Visiting Fellow at the Hoover Institution.

The former four-star is best known for his blunt speaking style and colorful quotes such as "Be polite, be professional, but have a plan to kill everybody you meet."

"He's a man of character and integrity. He's given his life to his country. How do you ask someone like that to leap headfirst into this toxic mud-puddle of a race? It's damn hard. But Trump is a fascist lunatic and Hillary has one foot in a jail cell. That means the lunatic can win. I'd be first in line to plead with the general to come save America," John Noonan, a former national security adviser to Jeb Bush who is working on the campaign to draft Mattis, told the Daily Beast.

Noonan tweeted on Friday that he's received a "blast of emails/calls" in response to the Daily Beast story with people asking him to "sign me up" for the effort.

He also tweeted how the storied war general would come down on some of Trump's policy proposals.

"Q posted to me just now: Would Mattis build a wall?" Noonan wrote on Twitter.

"Trick question. Mattis is the wall."

It's not the first time supporters of the "warrior monk," another of Mattis' nicknames, have wanted him to run. A former Marine launched a write-in campaign for Mattis in 2012, though it didn't gather much support and didn't have the financial backing of the current attempt.

Despite all the support, Mattis has said he's not up for the job and doesn't "have a broad enough perspective" to be commander in chief.

"[It's] time for younger people, especially veterans, to run for office," Mattis told Marine Corps Times.

Mattis received one write-in vote in a Military Times 2016 poll released last month.