Joe Biden and Donald Trump to face off in US presidential election debate

Former president Donald Trump, left, and President Joe Biden will hold an election debate later. Picture: AP

US President Joe Biden and his Republican rival Donald Trump will meet for a debate later that offers an unparalleled opportunity for both candidates to try to reshape the political narrative.

Mr Biden, the Democratic incumbent, gets the chance to reassure voters that, at 81, he is capable of guiding the US through a range of challenges.