The accusations came just ahead of a procedural vote in the Senate on Kavanaugh, who has been accused of sexual misconduct.
With their party holding a slim 51-49 majority in the Senate, all eyes were focused on three Republican senators who have not yet declared what they will do in the final vote - Jeff Flake of Arizona, Susan Collins of ME and Lisa Murkowski of Alaska. Jeff Flake of Arizona and Orrin Hatch of Utah.
Hatch was approached by protesters as he was getting into an elevator on Thursday, waving his hand at them and telling them to "grow up". West Virginia Democrat Joe Manchin was also confronted.
"(I) wish he paid my airfare: "$495", the protester said.
The Senate Judiciary Committee voted on September 28 to move forward with the nomination after agreeing to have the FBI investigate Ford's accusations, as well as those of Deborah Ramirez.
Trump's claim that Soros is bankrolling the protesters is a baseless conspiracy theory that the far right has glommed onto in the Trump era. It led to an emotional day of Senate testimony from Ford and Kavanaugh, in which the prospective justice condemned "the left" and called the allegations revenge for Hillary Clinton's presidential defeat, which had many questioning Kavanaugh's temperamental suitability for the court.
Trump was referring to college graduate Maria Gallagher and another friend who told Flake of the impact sexual assaults had on their lives last Friday while in an elevator. The investigation was completed by Wednesday night and a report was delivered to Senate leaders and the White House early Thursday morning. Trump marveled at the speed, saying "boy, did he fold up like a wet rag".
Other Republicans have echoed Mr Trump's frustration. On "Fox and Friends" Friday, Republican Sen.
On Fox And Friends, Republican senator Chuck Grassley said the protests were "a reflection of the incivility of American society generally".
Some of the women protesting are members of or paid staffers for activist groups. Ana Maria Archila, one of the two women who confronted Flake, is co-executive director of the nonprofit Center for Popular Democracy Action.
"When I was talking to Flake in that moment, I was a woman", Archila said.