President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE and first lady Melania Trump Melania TrumpMelania Trump: Ginsburg's 'spirit will live on in all she has inspired' The Hill's 12:30 Report - Presented by Facebook - You might want to download TikTok now Warning label added to Trump tweet over potential mail-in voting disinformation MORE attended a special ceremony for Justice Brett Kavanaugh Brett Michael KavanaughOvernight Health Care: US coronavirus deaths hit 200,000 | Ginsburg's death puts future of ObamaCare at risk | Federal panel delays vote on initial COVID-19 vaccine distribution Senate GOP sees early Supreme Court vote as political booster shot Trump says he'll make Supreme Court pick on Saturday MORE at the Supreme Court on Thursday.

The off-camera event, known as an investiture, is a welcoming ceremony of sorts for the new justice, who is Trump’s second successful nomination to the high court.

Invited guests included elite and well-known members of Washington’s conservative legal and political circles.

Those in attendance included Federalist Society Executive Vice President Leonard Leo, former White House Counsel Don McGahn, Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellPelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Senate GOP aims to confirm Trump court pick by Oct. 29: report Trump argues full Supreme Court needed to settle potential election disputes MORE (R-Ky.) and his wife Transportation Secretary Elaine Chao Elaine Lan ChaoChick-fil-A drops fight for San Antonio airport location Overnight Defense: US marks 19th anniversary of 9/11 attacks | Trump awards Medal of Honor to Army Ranger for hostage rescue mission | Bahrain, Israel normalizing diplomatic ties Trump marks 9/11 with moment of silence on Air Force One, remarks in PA MORE, former Clinton independent counsel Kenneth Starr and Sen. Lindsey Graham Lindsey Olin GrahamSenate GOP aims to confirm Trump court pick by Oct. 29: report The Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting Senate GOP sees early Supreme Court vote as political booster shot MORE (R-S.C.).

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Kavanaugh's former colleagues on the D.C. Circuit Court of Appeals, including Chief Judge Merrick Garland Merrick Brian GarlandPelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump argues full Supreme Court needed to settle potential election disputes Michelle Obama and Jennifer Lopez exchange Ginsburg memories MORE, also attended the event. Former President Obama nominated Garland to the Supreme Court to replace the late Justice Antonin Scalia, but Republicans refused to hold a hearing or vote on his nomination, holding the seat open until after the 2016 presidential election.

Newly appointed Acting Attorney General Matthew Whitaker was also there. In an authoritative tone, he made the formal request for Kavanaugh’s commission to be read and accepted by the court.

The court clerk said the commission was signed by former Attorney General Jeff Sessions Jefferson (Jeff) Beauregard SessionsGOP set to release controversial Biden report Trump's policies on refugees are as simple as ABCs Ocasio-Cortez, Velázquez call for convention to decide Puerto Rico status MORE, who resigned upon the president request less than 24 hours ago.

Whitaker sat at counsel’s table in the front of the courtroom beside Deputy Attorney General Rod Rosenstein Rod RosensteinDOJ kept investigators from completing probe of Trump ties to Russia: report Five takeaways from final Senate Intel Russia report FBI officials hid copies of Russia probe documents fearing Trump interference: book MORE and Solicitor General Noel Francisco.

President Trump and the first lady were seated next to retired Justice Anthony Kennedy, whom Kavanaugh has replaced on the court.

Trump did not display emotion throughout the 20-minute ceremony in the courtroom, where he earned a big win last term. The justices voted to uphold his travel ban on people from five majority-Muslim countries from entering the United States in June.

Trump has now asked the justices to wade into legal fights over his administration’s decision to rescind the Obama-era Deferred Action for Childhood Arrivals policy. The program has protected people brought to the country illegally as children from deportation.

Trump was also present for the investiture ceremony of his first Supreme Court nominee, Neil Gorsuch. Unlike Gorsuch, however, Kavanaugh did not take the traditional walk down the courthouse steps following the ceremony.

In a statement last week, Supreme Court Public Information Officer Kathy Arberg said there would be no photo opportunity due to security concerns. The walk is usually a chance for the media to get a picture of the new justice and his family.

The court said every justice since Justice John Paul Stevens in 1975 had walked down the steps.

Kavanaugh smiled as he entered the courtroom for Thursday's proceedings with his wife and took his seat in the ceremonial chair used by Chief Justice John Marshall during the early 19th century.

It was one of the few times Kavanaugh is likely to sit in front of the bench rather than behind it.

After the commission was read, Chief Justice John Roberts swore Kavanaugh in for a second time. Roberts administered the Constitutional oath at the courthouse on Oct. 6 after Kavanaugh was confirmed by the Senate.

Kennedy administered the oath later that same day in a private ceremony in the justice’s conference room and two days later President Trump held a prime-time swearing in event at the White House, which was attended by the Kavanaugh's new colleagues on the court.

On Thursday, Roberts administered the Judicial Oath again. The ceremony marked the fourth time Kavanaugh has been sworn in to his new, lifetime role.

On behalf of the justices, Roberts wished Kavanaugh a "long and happy career in our common calling."

Justice Ruth Bader Ginsburg, who fractured three ribs in a fall in her office, was absent from Thursday's proceedings.

The Supreme Court's Public Information Office said Ginsburg went home Wednesday night after falling, but called Supreme Court Police to take her to a hospital early Thursday after experiencing discomfort overnight.

Ginsburg is being treated at George Washington University Hospital.

--This report was updated at 11:55 a.m.