Washington (CNN) President Donald Trump on Friday attempted to undermine the legitimacy and motivation of thousands of demonstrators on Capitol Hill protesting Supreme Court nominee Brett Kavanaugh, saying demonstrations are funded by George Soros, a billionaire financier and liberal donor who is the frequent topic of unsubstantiated right-wing conspiracy theories.

"The very rude elevator screamers are paid professionals only looking to make Senators look bad. Don't fall for it!" Trump tweeted Friday morning. "Also, look at all of the professionally made identical signs. Paid for by Soros and others. These are not signs made in the basement from love! #Troublemakers(.)"

The very rude elevator screamers are paid professionals only looking to make Senators look bad. Don't fall for it! Also, look at all of the professionally made identical signs. Paid for by Soros and others. These are not signs made in the basement from love! #Troublemakers — Donald J. Trump (@realDonaldTrump) October 5, 2018

Demonstrators have descended upon the Hill to protest Kavanaugh's nomination and last month, protestors repeatedly interrupted Kavanaugh's confirmation hearing. On Thursday alone, nearly 300 protesters were arrested in the Hart Senate building.

Kavanaugh's nomination was upended after allegations of sexual assault and misconduct emerged in recent weeks. The revelations and subsequent Senate proceedings have stirred a furious political debate and whipped up protests and recriminations and a clash between the mostly male power structure of the Republican Party and the emerging influence of the #MeToo movement.

The President's tweet came less than two hours after Senate Judiciary Chairman Chuck Grassley, R-Iowa, told Fox Business Network that alongside egging on by Democrats, he believes Soros is paying for protestors to disrupt operations on Capitol Hill as senators deliberate their votes on Kavanaugh.

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