US President Joe Biden is set to host a record-breaking fundraiser in New York City, alongside his predecessors Barack Obama and Bill Clinton.The gathering and concert will raise over $25m (£20m) for the Democrat's re-election campaign - the most ever for a single political event, says his team.They are looking to extend a growing cash gap between the president and his Republican challenger Donald Trump.Polls suggest the race for the White House rests on a knife edge.
Thursday's event at New York's Radio City Music Hall comes after a Biden campaign blitz in battleground states that could prove pivotal in November's vote.
The 81-year-old has been seeking to capitalise on momentum following his State of the Union Address earlier this month, which was well-received by Democrats.