Barrett would fill the seat vacated after the September 18 death of liberal icon Ruth Bader Ginsberg. Trump predicted that his nominee will get a "very quick" confirmation from Senate.
US President Donald Trump has nominated Amy Coney Barrett to the Supreme Court, picking a strong conservative to replace the late liberal justice Ruth Bader Ginsburg.
"Today it is my honour to nominate one of our nation's most brilliant and gifted legal minds to the Supreme Court," Trump said as Barrett stood at his side.
With Republicans almost certain to confirm Barrett, Trump will have been able to tilt the high court to the right on the eve of his difficult reelection attempt.
President @realDonaldTrump nominates Judge Amy Coney Barrett to the U.S. Supreme Court.— Kayleigh McEnany (@PressSec) September 26, 2020
She is a mother of seven, a qualified jurist, a respected academic, and an inspiration.
Turning to Barrett, Trump said that "you are very eminently qualified for the job." She and her lawyer husband have seven children, two of whom were adopted from Haiti, and they joined her at the ceremony in the White House Rose Garden.
If confirmed to replace liberal icon Ruth Bader Ginsburg, Barrett would become the fifth woman ever to serve on the top US judicial body and push its conservative majority to a commanding 6-3. With Trump's fellow Republicans controlling the Senate, confirmation appears certain, though Democrats may try to make the process as difficult as possible.
Trump predicted that his nominee will get a "very quick" confirmation in the Republican-controlled Senate.
"It should be a straightforward and prompt confirmation," Trump said at the White House.
Democrats have complained that Trump should not be able to name a new justice so close to the presidential election, in which he is currently behind in the polls. However, Republicans have the votes in the Senate to confirm Barrett.
"I love the United States and I love the United States Constitution," Barrett said, adding that she was "deeply honoured" in the confidence that Trump had shown in her.
Barrett praised Ginsburg, saying the late justice was "a woman of enormous talent and consequence."
Barrett pledged to be a justice along the lines of the late Justice Antonin Scalia, a staunch conservative who was friends with Ginsburg. Barrett once served as a clerk for Scalia.
"His judicial philosophy is mine too: a judge must apply the law as written. Judges are not policy makers," Barrett said.
Senate Majority Leader Mitch McConnell issued a statement Saturday praising the nomination.
"Judge Amy Coney Barrett is an exceptionally impressive jurist and an exceedingly well-qualified nominee to the Supreme Court of the United States," McConnell said.
"Amy Coney Barrett will decide cases based on the text of the Constitution as written.— The White House (@WhiteHouse) September 26, 2020
As Amy has said, being a judge takes courage. You are not there to decide cases as you may prefer. You are there to do your duty and to follow the law wherever it may take you." pic.twitter.com/2BxOwR6A87
Biden urges appointment after election
Democratic presidential nominee Joe Biden repeated his call for the appointment to be made by the winner of the election on November 3.
"The Senate should not act on this vacancy until after the American people select their next president and the next Congress," Biden said.
Today, President Trump nominated Judge Amy Coney Barrett to the Supreme Court — a jurist with a written track record of disagreeing with the Court’s decision to uphold the Affordable Care Act.— Joe Biden (@JoeBiden) September 26, 2020
Vote like your health care is on the ballot — because it is. https://t.co/TDBQOVLP4K
Barrett was appointed by Trump to the Chicago-based 7th US Circuit Court of Appeals in 2017 and is a favourite of religious conservatives, a key Trump voter bloc. Conservative activists have hailed Trump's selection, which surfaced on Friday night, while liberals have voiced dismay.
Like Trump's two other appointees, Neil Gorsuch in 2017 and Brett Kavanaugh in 2018, Barrett is young enough that she could serve for decades. Barrett is the youngest Supreme Court nominee since conservative Clarence Thomas was 43 in 1991.
"The stakes for our country are incredibly high, rulings that the Supreme Court will issue in the coming years will decide the survival of our Second Amendment (which guarantees the right to bear arms), our religious liberty, our public safety and so much more," Trump said.
"I urge lawmakers and members of the media to refrain from personal or partisan attacks" on Barrett, Trump added.
The White House ceremony was decorated with American flags arranged in a way similar to the day when President Bill Clinton nominated Ginsburg in 1993. There was tightly packed crowd at the ceremony, most not wearing masks despite the coronavirus pandemic.
The selection kicks off a flurry of activity that must take place before the final confirmation vote, including public hearings in the coming weeks before the Senate Judiciary Committee.
Democrats are still furious over McConnell's 2016 refusal to consider President Barack Obama's Supreme Court nomination of Merrick Garland because it came during an election year.
"Donald Trump and Mitch McConnell have made it clear they will pull out all the stops to jam through another right-wing Supreme Court nominee - even if that means breaking their own rule pertaining to election-year appointments," Democratic Senator Ron Wyden said.
Republicans hold a 53-47 Senate majority. Only two Republican senators have opposed proceeding with the confirmation process.
READ MORE: Trump jeered as he visits Ginsburg's casket
Abortion rights advocates have voiced concern that Barrett, a devout Roman Catholic, could cast a vote for overturning the landmark 1973 Roe v. Wade ruling legalising abortion nationwide.
Jeanne Mancini, president of March for Life, an anti-abortion group, in a statement on Saturday expressed confidence that Barrett "will fairly apply the law and Constitution as written, which includes protecting the most vulnerable in our nation: our unborn children."
Abortion rights groups and other liberal-leaning organisations announced plans for a protest against her nomination on Sunday in front of the Supreme Court.
Barrett has staked out conservative legal positions in three years on the bench, voting in favour of one of Trump's hardline immigration policies and showing support for expansive gun rights. She also authored a ruling making it easier for college students accused of campus sexual assaults to sue their institutions.
Born in New Orleans, Barrett received her law degree from Notre Dame Law School, a Catholic institution in Indiana.
This marks the first time since 1956 that a US president has moved to fill a Supreme Court vacancy so close to an election. In that year, President Dwight Eisenhower three weeks before winning re-election placed William Brennan on the court using a procedure called a "recess appointment" that bypassed the Senate, a tactic no longer available for installing justices.