On Saturday night, Donald Trump proposed the appointment of Conservative Justice Amy Coney Barrett to the Supreme Court, replacing Ruth Bader Ginsburg.
A decision that has yet to validate the Senate, with a Republican majority.
In the process, Joe Biden, the Democratic candidate for the White House, asked the assembly to wait for the presidential election before deciding.
President Donald Trump announced on Saturday that he was appointing Justice Amy Coney Barrett to the Supreme Court, further anchoring the institution that decides the great debates of American society in conservatism.
"This is my third appointment (for the Supreme Court) and it's a great moment," Donald Trump said from the gardens of the White House.
"You are going to be fantastic," he said, addressing the judge, standing beside her.
The White House tenant also predicted a "swift" confirmation of Judge Barrett by the Senate.
Joe Biden asks for a delay
But in the wake of the announcement, Democratic White House candidate Joe Biden called on the US Senate not to vote on Amy Coney Barrett's nomination to the Supreme Court before the November 3 presidential election.
"The Senate should not vote on this vacancy," created by the death of progressive judge Ruth Bader Ginsburg, "until Americans choose their next president and their next Congress," he said. in a press release a few minutes after Donald Trump spoke.
Joe Biden noted that Judge Barrett had marked his "disagreement with the Supreme Court's decision in favor of maintaining" Obamacare, the health insurance law passed when he himself was vice-president.
"President Trump has been trying for four years to throw out 'Obamacare, but" on two occasions the Supreme Court has upheld the law saying it is constitutional, "said the Democrat.
"But even now, in the midst of a global pandemic, the Trump administration is asking the Supreme Court to strike down the entire law," he lamented.