Bernie Sanders has blamed Hillary Clinton for not doing more to stop the Russians’ widespread interference in the 2016 presidential election.

“The real question to be asked is what was the Clinton campaign [doing about Russian interference]? They had more information about this than we did,” Sanders told Vermont Public Radio on Wednesday.

Sanders later told Politico that his campaign had given information to the Clinton campaign about anti-Clinton Russian trolls on a campaign Facebook page.

But Jeff Weaver, Sanders 2016 campaign manager, later told the website that the Vermont senator had no personal knowledge that the Russian trolling actually happened.

“A guy who was on my staff … checked it out and he went to the Clinton campaign, and he said, ‘You know what? I think these guys are Russians,’” Sanders said.

But a Clinton campaign aide said that never happened.

Weaver also told Politico that he had not seen any evidence to support special counsel Robert Mueller’s charge in an indictment accusing 13 Russians of interfering in the election that the saboteurs did anything to help Sanders — a statement Sanders echoed in the radio interview.

“They were supporting my campaign? No. They were attacking Hillary Clinton’s campaign and using my supporters against Hillary Clinton,” he said.

Sanders later issued a statement to the website calling the Russian meddling a “direct assault on the free democratic systems that stand in contrast to the autocratic, nationalistic kleptocracy of Vladimir Putin and his backers in the Russian oligarchy” which “deserves unconditional condemnation.”