Gorsuch, who also clerked for the late Justice Byron White, a fellow Coloradan, fills the seat left vacant by the death of Justice Antonin Scalia past year.
Republicans defended the rule change by arguing Democrats were waging the first "partisan filibuster" of a Supreme Court nominee and were signaling they wouldn't back any Republican nominee.
During a private ceremony Monday, Gorsuch was sworn in by Justice Anthony Kennedy, for whom he clerked years ago. It was the fulfilment of a vital campaign promise made by Mr. Trump to make the appointment of a strict conservative to the Supreme Court a top priority. It saw Senate Republicans trigger the "nuclear option" to eliminate the 60-vote filibuster threshold for all future high court nominees.
Democrats angrily fought the nomination to the end because McConnell had blocked former president Barack Obama's nominee for the seat, Merrick Garland, after Scalia's sudden death in February 2016.
Scalia had anchored the court's conservative wing for almost three decades before he died unexpectedly in February 2016.
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We expect it and we'll deal with it like we always have". "All good players that's kind of the recipe for success ", Braun said. A thousand more jammed into a beer garden in the entrance hall and watched their first-round game with San Jose on television.
"As a deep believer in the rule of law, Judge Gorsuch will serve the American people with distinction as he continues to faithfully and vigorously defend our Constitution", he said after his confirmation.
With President Donald Trump, who nominated Gorsuch, looking on, the 49-year-old justice took his judicial oath in the White House Rose Garden.
Any cases the court already has heard this term in which the justices were equally divided could be reconsidered so that Gorsuch can cast the deciding vote.
El-Masri was eventually released after the Central Intelligence Agency admitted it had made a mistake. You may call Gorsuch whatever you like-interloper, cipher, beneficiary of a stolen seat-but his formal title is now "Justice". Prestigious Supreme Court clerkships for Justices Byron White - the first justice from Colorado - and Kennedy.
The court's familiar 5-member conservative majority has been restored.
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The swearing-in of Justice Neil M. Gorsuch on Monday restores the Supreme Court to full strength for the first time in almost 14 months and sets the stage for further conservative victories that could start accumulating quickly.
The White House swearing-in ceremony is a departure from recent history. The result of these stratagems is a more politicized court and a new justice viewed by one party as illegitimate.
Gorsuch joins the court that is often the final arbiter for presidential policy. The prize noted the enduring friendship between the justices despite their ideological differences.
Associated Press writers Mark Sherman and Ken Thomas contributed to this report.
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