If all goes according to Republicans' plans, the committee will vote later this month - nearly surely along straight party lines - to send his nomination to the full Senate in hopes of getting him on the court by the October 1 start of the 2018 term.
Republicans also a year ago reduced the margin for advancing Supreme Court nominations from 60 votes in the 100-seat Senate to a simple majority in order to force through the confirmation of Trump's first high court nominee, Neil Gorsuch.
Only after enduring hours of this split-screen speechifying did Kavanaugh get to deliver his opening remarks.
Although Kavanaugh helped to investigate then-President Bill Clinton while working for independent counsel Ken Starr in the 1990s, he later wrote in a 2009 law review article that presidents' official duties are too demanding for them to be subject to such a probe. But the Democratic frustrations that boiled over on Tuesday had been simmering for more than two years.
Republicans hold a one-vote majority in the Senate.
The Analysis: From the unrelenting protests to the fiery rhetoric from Democrats, this was widely seen as the most contentious Supreme Court hearing in recent memory. A handful of Democrats seeking re-election in states Trump carried in 2016 could vote for Kavanaugh.
So in that sense, Tuesday's start to the Kavanaugh hearings marks the natural next step in the Republicans' devastatingly successful strategy to pack the federal courts.
In excerpts from his opening statement, Kavanaugh said he is a "pro-law judge" who would bring his impartiality to the nation's high court.
Fred Guttenberg, the father of Jamie Guttenberg who was killed in a shooting in Parkland, Fla., left, attempts to shake hands with Supreme Court nominee Brett Kavanaugh, right.
Judiciary Committee Chairman Chuck Grassley of Iowa gaveled in the first day of hearings on Tuesday morning.
The "Coyote Ugly" star posted video of herself being escorted out of the hearing room by Capitol Police while the Senate Judiciary Committee hearing was underway.
Republican senator Orrin Hatch said Kavanaugh was one of the most impressive Supreme Court nominees he had come across despite Democrats portraying him as "one of four horsemen of the apocalypse".
Democrats have been under intense pressure from liberal voters to resist Trump, and many remain irate, even two years later, over the treatment of Merrick Garland, President Barack Obama's nominee for the Supreme Court, who was denied so much as a hearing last year by Majority Leader Mitch McConnell. So far, there were no signs of defections, with the Senate likely to vote by the end of the month.
The mostly female demonstrators shouted out that Mr Kavanaugh would allow President Trump to pardon himself.
As a judge, he has amassed a solidly conservative record since 2006 on the influential Washington-based appeals court. He later served as White House staff secretary during the George W. Bush administration.
"Their motives are clear", said Sen.
"Big Republican interests keep winning 5-4 partisan decisions: 73-0, Mr. Kavanaugh, every damned time", Whitehouse said.