Mr Trump predictably took to Twitter to bemoan the court’s stance.
“The Supreme Court had ZERO interest in the merits of the greatest voter fraud ever perpetrated on the United States of America,” he said, again without evidence. “All they were interested in is ‘standing’, which makes it very difficult for the President to present a case on the merits.”
The thumping setback for Mr Trump who continues to maintain the 2020 election was fraudulent comes as the Electoral College prepares to officially anoint the next president in a formal vote on Monday (Tuesday AEDT).
Normally a little-noted procedural affair, this year’s college vote has taken on an outsized significance as it will definitively close out Mr Trump’s efforts to reverse the outcome of the election five weeks ago.
In the US, the Electoral College is the 538-member body that ultimately determines the winner of presidential elections.
“Trump has lost across the board”: former national security adviser John Bolton. AP
Delegates or electors, as they are known are drawn from all 50 states and the District of Columbia. In most of those jurisdictions, the popular vote determines who the delegates will vote for, with the winning candidate needing at least 270 votes to win.
“It’s one thing to say that the President was entitled to take advantage of his legal remedies,” Mr Bolton said in an interview on CNN late on Saturday. “He’s done that and lost right across the board.”
He added: “Legally this thing was over a long time ago. On Monday, it’s over politically.”
At least 86 judges, appointed by Democrats and Republicans, some including Mr Trump himself, have rejected lawsuits filed by the President or his supporters since the November 3 election, in a “remarkable show of near-unanimity across the nations judiciary”, according to a Washington Post report.
Among Mr Trump’s supporters, however, the endless court cases have reinforced a near-religious belief that the election was stolen.
Thousands of Mr Trump’s supporters took to the streets on Saturday in a last-ditch show of force ahead of the Electoral College meeting.
Mr Trump flew over the crowd on Marine One as he travelled to West Point, New York, for the annual Army-Navy football game, drawing cheers.
Wow! Thousands of people forming in Washington (D.C.) for Stop the Steal. Didnt know about this, but Ill be seeing them! #MAGA,” Mr Trump wrote on Twitter.
While smaller than recent rallies, Saturday’s gathering included a larger contingent of the so-called Proud Boys, a neo-fascist group known to incite street violence, according to Associated Press. Some wore bullet-proof vests as they marched through town.
As the crowds gathered, Mr Trump continued to slam Republicans that he blames for losing the election.
Attacking “RINO” Republicans or “Republicans in name only” Mr Trump called for the sacking of Georgia Governor Brian Kemp and Arizona’s Doug Ducey.
Who is a worse governor, @BrianKempGA of Georgia or @dougducey of Arizona???, Mr Trump wrote of two men he has previously endorsed. They allowed states that I won easily to be stolen. Never forget, vote them out of office!
He rattled off a series of attacks on Mr Barr, the Attorney-General, endorsing a radio shock jock’s call for his firing and criticising his handling of a Justice Department probe into Mr Biden’s son, Hunter Biden.
“Why didnt Bill Barr reveal the truth to the public, before the Election, about Hunter Biden. Joe was lying on the debate stage that nothing was wrong, or going on Press confirmed. Big disadvantage for Republicans at the polls!” Mr Trump wrote.
Mr Trump raised the possibility of firing Mr Barr in a meeting on Friday, according to media reports.
At least 86 judges, some appointed by Donald Trump himself, have rejected lawsuits filed by the President or his supporters since the November 3 election.
