President Joe Biden and former President Donald Trump are gearing up for a crucial debate on Thursday, a momentous occasion that could significantly impact the tightly contested US election.

With polls showing a slight advantage for Trump in key swing states, both candidates aim to alleviate concerns about their respective liabilities. Biden, 81, faces questions about his mental acuity, while Trump, 78, has sparked worries over his inflammatory rhetoric and criminal cases.

The debate, hosted by CNN in Atlanta, will see the rivals clash for 90 minutes, with Biden seeking to portray Trump as unfit for office and Trump focusing on the economy and crime. The campaign has grown increasingly personal, with both sides escalating attacks.

The outcome of this debate could be a game-changer in the election, which is expected to be decided by a narrow margin.