When incumbent US President Donald Trump tweeted on Sunday that Biden had won, albeit with the great proviso that it was done through cheating, many thought it was Trump's way of admitting his defeat.

However, Trump, who lost the presidential election by more than six million votes and an electoral margin of 306 votes to 232, does not seem to have any plans to throw in the towel.

The president's initial tactics to challenge the result with reference to electoral fraud have instead been replaced by advocacy aimed at politicians and state officials, including with the aim of getting them to revoke the certification of already established election results.

"One of the most irresponsible presidents"

Joe Biden describes Trump's actions as an "incredibly damaging message to the outside world" about the functioning of American democracy.

The president's pressure on local officials over the Michigan election results is another event in a row that will put Trump in the history books as "one of the most irresponsible presidents in US history," according to Biden.

On Friday night, Trump chose to comment on the result in Georgia, where Biden still seems to be winning even after a new recalculation.

"Georgia's governor and secretary of state are refusing to let us look at signatures that would expose hundreds of thousands of illegal votes and give the Republicans and me a big victory," Trump wrote on Twitter.

Support of Republicans

Biden is backed by Republican Sen. Mitt Romney, who has often criticized Trump.

"After failing to present a reasonable case of widespread electoral fraud in court, the president has now lowered himself to put pressure on representatives of the states and at the local level to undermine the will of the people and tear up the election," he wrote on Twitter.

Biden is also supported by Republican Senator Lamar Alexander.

He wrote on Twitter that the time has come for Trump to begin handing over power.

"If there is any chance at all that Joe Biden will be the next president, and it looks like he has a very good chance, the Trump administration should provide Biden's staff with all the transition material, resources and meetings necessary to ensure a smooth transition." , writes the 80-year-old Lamar - who is about to retire.