Former Fox News host Glenn Beck appeared on his old network Tuesday night, warning "Kelly File" host Megyn Kelly that Russia is actively trying to thwart Democratic presidential nominee Hillary ClintonHillary Diane Rodham ClintonBiden slams Trump over golf gif hitting Clinton Overnight Cybersecurity: Equifax hit by earlier hack | What to know about Kaspersky controversy | Officials review EU-US privacy pact Overnight Tech: Equifax hit by earlier undisclosed hack | Facebook takes heat over Russian ads | Alt-right Twitter rival may lose domain MORE's candidacy.

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"I do believe, based on their words only,” Beck told Kelly via satellite, “that Russia is trying to take down Hillary Clinton ... to destabilize our election and foment revolution on our streets.”

Beck's comments come on the heels of the release of hacked emails and documents from the Democratic National Committee (DNC) showing party officials actively strategizing against Clinton's primary rival, Sen. Bernie SandersBernard (Bernie) SandersOvernight Defense: Senate passes 0B defense bill | 3,000 US troops heading to Afghanistan | Two more Navy officials fired over ship collisions Senate passes 0B defense bill Dems fear lasting damage from Clinton-Sanders fight MORE (I-Vt.). U.S. intelligence officials reportedly have "high confidence" that the Russian government was responsible for the hacking. 

"Russia is trying to do to us right now what we did to them under Ronald Reagan," Beck argued.

"We collapsed the Soviet Union. Putin is going to pay us back."

Beck, a staunch backer of Sen. Ted CruzRafael (Ted) Edward CruzSenate Dems hold floor talk-a-thon against latest ObamaCare repeal bill Overnight Finance: CBO to release limited analysis of ObamaCare repeal bill | DOJ investigates Equifax stock sales | House weighs tougher rules for banks dealing with North Korea GOP state lawmakers meet to plan possible constitutional convention MORE (R-Texas) in this year's primaries, also had praise for Trump critic and 2012 GOP presidential nominee Mitt Romney.

"Mitt Romney called this and everybody mocked him. We're about to find out that Russia is our biggest foe and our biggest nightmare."

As for Beck predicting Trump would win the election as recently as this May, the Blaze founder and host declined to stick to his guns.

"I've got nothing right during this election," Beck joked.

The appearance is Beck's first on the network since publicly praising Kelly following the news of her cooperation with investigators looking into sexual harassment claims against Beck's former boss, former Fox News CEO and Chairman Roger Ailes.

Ailes resigned on July 21.

This report was updated at 10:02 a.m.