Amy Coney Barrett, US President Donald Trump's Supreme Court nominee, is to go before the Senate Judiciary Committee for what could be a fiery confirmation hearing over the next four days.
The 48-year-old conservative jurist has vowed to judge legal cases impartially.
Judge Barret's nomination so close to the 3 November presidential election has sparked a political row between the Republicans and rival Democrats.
Judge Barrett's approval would cement a conservative majority on the top court.
Conservative-leaning justices would then hold a 6-3 majority, shifting its ideological balance for potentially decades to come.
President Trump picked Judge Barrett to replace liberal Justice Ruth Bader Ginsburg, who died last month aged 87.
The Republicans - who currently hold a slim majority in the US Senate, the body that appoints Supreme Court judges - are now trying to complete the process before Mr Trump takes on Democratic rival Joe Biden in the election.
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