A former top political adviser to Donald Trump has launched a super PAC to attack Trump's competitors.
Roger Stone, who parted ways with Trump's campaign in August, has started the Committee to Restore America's Greatness to attack contenders like Sen. Marco Rubio, R-Florida.
"If you think it's essential that the Republican Party nominate Donald J. Trump for President instead of Senator Marco Rubio, I urgently need your help," he wrote on the super PAC's website.
Stone, who has worked on a number of other presidential campaigns, told The Wall Street Journal that he hasn't talked to Trump or his presidential campaign about the new venture. He also said that the group will be funded by "small contributions from average people" and will not accept any corporate donations.
Trump has repeatedly criticized super PACs and has claimed he is self-funding his campaign.
On the super PAC's website, Stone touts some of Trump's proposals such as one to build a wall along the U.S.-Mexico border. He also suggested that Rubio and Ohio Gov. John Kasich as conspiring against Trump to prevent him from winning the nomination.
"The RINOs (Republicans in Name Only) , Rubio and Kasich, are teaming up for an expensive attack campaign in an attempt to destroy the candidacy of Donald Trump," wrote Stone, who also attacked New Jersey Gov. Chris Christie for being "weak against radical Islam," among other things.
After the fifth GOP presidential debate on Tuesday, Stone told conservative news outlet Newsmax that "Trump remains the frontrunner."