Donald Trump Jr.Donald (Don) John TrumpWhite House condemns violent video Backlash erupts at video depicting Trump killing media, critics WHCA calls on Trump to denounce video depicting him shooting media outlets MORE on Sunday mocked Senate Democrats for their reaction to sexual misconduct accusations made against Supreme Court nominee Brett Kavanaugh. 

"Oh boy... the Dems and their usual nonsense games really have him on the ropes now," Trump Jr. said in an Instagram post.

"[Sen. Dianne FeinsteinDianne Emiel FeinsteinSchiff should consider using RICO framework to organize impeachment We need answers to questions mainstream media won't ask about Democrats The Hill's Morning Report - Trump grapples with Syria fallout MORE (D-Calif.)] had the letter in July and saved it for the eve of his vote... honorable as always. I believe this is a copy for full transparency," Trump Jr. added, posting a picture of a letter that reads, "Hi Cindy, will you be my girlfriend." 

The post was published the same day Christine Blasey Ford, a California psychology professor, came forward publicly and detailed her allegations against Kavanaugh to The Washington Post. 

Ford, who is now 51, is accusing Kavanaugh of pinning her to a bed one summer while they were in high school in the 1980s. Ford said to the Post that Kavanaugh "groped her over her clothes, grinding his body against hers and clumsily attempting to pull off her one-piece bathing suit and the clothing she wore over it."

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Her attorney, Debra Katz, said on Monday on NBC's "Today" that Ford "believes that if it were not for the severe intoxication of Kavanaugh, she would’ve been raped.”

Trump Jr.'s reference to Feinstein is about a letter Ford wrote to the senator in late July about Kavanaugh. Reports began to surface last week about the letter, but Ford's name had remained anonymous until Sunday. 

Many supporters of Kavanaugh have speculated about the timing of the letter's release, given that Feinstein received it more than a month ago.

The White House is preparing to try to discredit the charges in part because they appeared so late in the confirmation process, according to Bloomberg News. 

Several senators, including Feinstein, have called for Kavanaugh's looming Senate Judiciary confirmation vote to be postponed until the committee can speak with the accuser.

Judiciary Committee Chairman Chuck Grassley (R-Iowa) has said that he wants to have separate phone calls with Kavanaugh and Ford before the scheduled confirmation vote.

Katz on Monday said that Ford would be willing to testify before the committee.