This marks only the latest in a long series of gaffes the president has made while speaking in public, with his track record of blunders increasingly used by Mr Trump and his supporters to claim that the 81-year-old is too old to serve another term in the White House and is in a state of “cognitive decline”.

President Joe Biden took the gloves off Wednesday by saying former President Donald Trump deserved to be punched and injected bleach into his hair - while engaging in his own battle with the teleprompter.

In his latest gaffe, president Joe Biden questioned on the campaign trail the number of times Donald Trump needed to prove that “we” can’t be trusted

Joe Biden has made another embarrassing blunder as he tried to brand Donald Trump untrustworthy, with the president seemingly branding his own administration as untrustworthy