George Soros blasted Facebook at Davos, accusing the company of conspiring to help President Donald Trump win reelection.

“I think there is a kind of informal mutual assistance operation or agreement developing between Trump and Facebook,” Soros said at the World Economic Forum in Switzerland. “Facebook will work together to reelect Trump, and Trump will work to protect Facebook so that this situation cannot be changed, and it makes me very concerned for 2020.”

The liberal billionaire did not offer any proof, and Facebook denied it, but Soros doubled down on his anti-Facebook talk Friday in an opinion piece published in The New York Times.

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"I believe that Mr. Trump and Facebook’s chief executive, Mark Zuckerberg, realize that their interests are aligned – the president’s in winning elections, Mr. Zuckerberg’s in making money," Soros wrote.

Soros also said neither Zuckerberg nor Sheryl Sandberg, the company's chief operating officer, should be left in charge of Facebook. “They follow only one guiding principle: maximize profits irrespective of the consequences,” Soros wrote.

Facebook pushed back in a statement.

"While we respect Mr. Soros’ right to voice his opinion, he’s wrong. The notion that we are aligned with any one political figure or party runs counter to our values and the facts."

Last week in Davos, Trump was asked about Zuckerberg. "I heard he's gonna run for president," Trump told CNBC's Squawk Box. "That wouldn't be too frightening, I don't think."

There's no evidence Zuckerberg and Trump have any kind of pact. But it's true that Facebook gave Trump a big boost in 2016. Just ask Facebook.

In January, a leaked internal post from longtime Facebook executive Andrew “Boz” Bosworth credited Trump's 2016 win to the president's digital advertising campaign. In 2020, Trump campaign manager Brad Parscale is focused again on Facebook.

"Was Facebook responsible for Donald Trump getting elected?” Bosworth wrote in the Dec. 30 post. “I think the answer is yes, but not for the reasons anyone thinks. He didn’t get elected because of Russia or misinformation or Cambridge Analytica. He got elected because he ran the single best digital ad campaign I’ve ever seen from any advertiser.”

Earlier this month Trump told Rush Limbaugh’s radio show that during a dinner in October, Zuckerberg told him he was “No. 1” on the social media platform.

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Tensions have been running high between Soros and Facebook for some time. Soros, a bogeyman in right-wing conspiracy theories shared on social media platforms like Facebook, has used his annual Davos speech as a platform to criticize Zuckerberg's company before.