President TrumpDonald TrumpCapitol fencing starts coming down after 'Justice for J6' rally Netanyahu suggests Biden fell asleep in meeting with Israeli PM Aides try to keep Biden away from unscripted events or long interviews, book claims MORE's former White House chief strategist Stephen Bannon is warning Republican candidates not to take money from the conservative Koch network — or face consequences.
"You take Koch money, it's going to be toxic," Bannon told CNBC in an interview. "We are going to let people know that if you take Koch money there's a punishment.
"If you take money from people who are against the president and are looking to put a knife in the back of the president, you are going to pay."
Bannon's comments came amid signs of tensions between the Koch network and President Trump.
The Koch network has said it would freeze out Republicans who break with its fiscally conservative policy priorities, at least for now, and that it plans to back only a handful of candidates in Senate races in Florida, Wisconsin, Tennessee and Missouri.
The Koch network, a web of conservative groups funded by billionaire industrialist Charles Koch, has long been a forceful player in conservative politics in the U.S. This election cycle, the network is slated to spend about $400 million on politics and policy initiatives.
But it has broken with President Trump and some of his allies in Congress on issues such as spending and government trade. And the Koch network declined to endorse Rep. Kevin CramerKevin John CramerThe Memo: Biden beats Trump again — this time in the Senate The 19 GOP senators who voted for the T infrastructure bill Republicans unveil bill to ban federal funding of critical race theory MORE (R-N.D.), who is challenging Sen. Heidi HeitkampMary (Heidi) Kathryn HeitkampWashington's oldest contact sport: Lobbyists scrum to dilute or kill Democrats' tax bill Progressives prepare to launch counterattack in tax fight Business groups aim to divide Democrats on .5T spending bill MORE (D) for her Senate seat in North Dakota.
The announcement drew the ire of President Trump, who said in a tweet on Monday that the network had become a "total joke" and insisted that he "never sought their support because I don’t need their money or bad ideas."
Bannon declined to say in his interview with CNBC exactly how he planned to go after the Koch network, but asserted that it needed to be held accountable.
"Let's start holding the Kochs accountable. It's a con job and they are a total scam," he told the network. "They are promoters and it's a total Ponzi scheme. They never raise as much money as they talk about and no one ever knows who their donors are."