The 49-year-old appeals court judge from Colorado is to be sworn in Monday after a bruising fight that saw Republicans change the rules for approving Supreme Court picks — over the fierce objection of Democrats.
First up is a private ceremony in the high court's Justices' Conference Room, with Chief Justice John Roberts administering the oath prescribed by the Constitution. That will be followed by a public ceremony at the White House, where Justice Anthony Kennedy is to administer the oath.
Gorsuch, who once clerked for Kennedy, will be the first member of the court to serve alongside his former boss.
He replaces the late Justice Antonin Scalia, part of the court's conservative wing for nearly three decades before he died unexpectedly in February 2016. In nominating Gorsuch, President Donald Trump said he fulfilled a campaign pledge to pick someone in the mold of Scalia.
During 11 years on the federal appeals court in Denver, Gorsuch mirrored Scalia's originalist approach to the law, interpreting the Constitution according to the meaning understood by those who drafted it. Like Scalia, he is a gifted writer with a flair for turning legal jargon into plain language people can understand.
Gorsuch will be seated just in time to hear one of the biggest cases of the term: a religious rights dispute over a Missouri law that bars churches from receiving public funds for general aid programs.
His 66-day confirmation process was swift, but bitterly divisive. It saw Senate Republicans trigger the "nuclear option" to eliminate the 60-vote filibuster threshold for all future high court nominees. The change allowed the Senate to hold a final vote with a simple majority.
Most Democrats refused to support Gorsuch because they were still seething over the Republican blockade last year of President Barack Obama's pick for the same seat, Merrick Garland. Senate Republicans refused to even hold a hearing for Garland, saying a high court replacement should be up to the next president.
The White House swearing-in ceremony is a departure from recent history. Justices Sonia Sotomayor and Elena Kagan were both sworn in publicly at the Supreme Court. Former Justice John Paul Stevens has argued that holding the public ceremony at the court helps drive home the justice's independence from the White House.