A letter reportedly written by Brett Kavanaugh in 1983 makes multiple references to drinking.
The president's son lashed out at his critics on Twitter.
Senator John Kennedy of Louisiana criticized Democrats looking into allegations against Supreme Court nominee Judge Brett Kavanaugh.
"I mean, really, yes, it deserves a lot of laughter," Hillary Clinton said Tuesday.
"When each narrative the left comes up with to destroy a good man with 0 proof fails they try another," Trump Jr. tweeted. "This is how the left plays!"
"I will not use civil words to describe mass incivility," the professor tweeted.
"All this whining about the poor plight of white men is ridiculous," a CNN analyst said.
Trump's embattled Supreme Court nominee got into a fight after a UB40 concert in 1985.
The Supreme Court nominee was a "very mean drunk" in high school, Julie Swetnick said in her first televised interview about her allegations against Brett Kavanaugh.
The South Carolina senator said Trump should appeal directly to voters if his Supreme Court nominee is not confirmed by the Senate.
Brett Kavanaugh's Harvard Law School course on the Supreme Court appears to have been canceled.
Both Kavanaugh and Trump blamed Democrats for the sexual assault allegations against them.
"You cannot prove a sexual assault of Dr. Ford," Megyn Kelly said on the Today show Monday. "You can't, even she can't."
"F.B.I. agents are experts at interviewing people and quickly dispatching leads to their colleagues around the world," Comey said.
Recent polls showed that standing by Brett Kavanaugh had damaged President Donald Trump's approval rating among women.
"She's either dumb as a post or she lied to the committee under oath," former U.S. Attorney Joe diGenova said on Fox News.
Donald Trump Jr. said he feared more for his sons than his daughters amid the #MeToo movement and last week's testimony from Supreme Court nominee Brett Kavanaugh and Christine Blasey Ford.
"I'm going to call for an investigation of what happened in this committee," Graham said. "Who betrayed Dr. Ford's trust?"
White House Press Secretary Sarah Huckabee Sanders said that Dr. Christine Blasey Ford's testimony was "compelling" but not "fact-based information."
The president slammed the senator over the letter from Ford.
"I have no connections there. I got there by busting my tail," the justice said while under oath.
The results were split along party lines.
During Bill Maher's monologue on his HBO show Real Time with Bill Maher, the comedian took swings at Supreme Court nominee Brett Kavanaugh's pugilistic tone during the judge's testimony under oath before the Senate Judiciary Committee.