Former American President Donald Trump says President Joe Biden was never fit to contest in the November 5 race, following the withdrawal of Mr Biden from the race on Sunday.

“Crooked Joe Biden was not fit to run for President, and is certainly not fit to serve – And never was!,” Mr Trump wrote on Truth Social, shortly after the news of Mr Biden withdrawal from the race broke.

He said Mr Biden “only attained the position of President through lies, Fake News, and not leaving his Basement. All those around him, including his Doctor and the Media, knew that he wasn’t capable of being President, and he wasn’t. We will suffer greatly because of his presidency, but we will remedy the damage he has done very quickly. MAKE AMERICA GREAT AGAIN!”

Mr Biden, 81, yielded to pressure from his party, announcing on Sunday that he was quitting the race. He endorsed his Vice President Kamala Harris as the Democratic candidate for the 5 November election.

Calls for Mr Biden’s resignation had intensified following a lacklustre performance in a June debate against Mr Trump, during which Mr Biden appeared disoriented and made incoherent statements.

A week later at the NATO summit, Mr Biden made embarrassing gaffes, mistakenly referring to Mrs Kamala Harris as Mr Trump and confusing Ukrainian President Volodymyr Zelensky with Russian leader Vladimir Putin.

Meanwhile, Mr Trump emerged as the Republican Party’s presidential candidate at their National Convention last week. He has also selected David James Vance, a senator from Ohio, as his running mate for the 5 November election.