Questions surround President Joe Biden’s run for re-election this November. After an underwhelming performance in the first debate with Republican rival Donald Trump, calls for the incumbent to step aside and let somebody else stand as the Democratic candidate have grown louder within the party. With concerns over the president’s fitness for office hanging like a cloud, we look at whether or not the Democrats could nominate an alternative candidate without his agreement, and examine some of the contenders who could potentially enter the fray. Host Caitríona Perry speaks with the BBC's US Special correspondent Katty Kay and North America correspondent Anthony Zurcher about the president’s fight to stay on his party’s ticket. The Global Story brings you trusted insights from BBC journalists worldwide. We want your ideas, stories and experiences to help us understand and tell #TheGlobalStory. Email us at theglobalstory@bbc.com You can also message us or leave a voice note via WhatsApp on +44 330 123 9480. TGS is part of the BBC News Podcasts family. The team that makes The Global Story also makes several other podcasts, such as Americast and Ukrainecast, which cover US news and the war in Ukraine. If you enjoy The Global Story, you may well like some of our other pods, too. To find them, simply search on your favourite podcast app. This episode was made by Tom Kavanagh and Alice Aylett Roberts. The technical producers were Mike Regaard and Jack Graysmark. The assistant editor is Sergi Forcada Freixas and the senior news editor is Sam Bonham.