![US President Joe Biden at Dover Air Force Base, in Delaware. He has been criticised by political rivals. AP](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/ZOKO4PR73UIHL23BQOVMALGJM4.jpg?smart=true&auth=2736e94b697728507643dfde21c5a9789033c76529970000e91cde37f89701f7&width=400&height=225)
US President Joe Biden at Dover Air Force Base, in Delaware. He has been criticised by political rivals. AP
US President Joe Biden at Dover Air Force Base, in Delaware. He has been criticised by political rivals. AP
Republicans call on Biden to resign after he steps away from re-election bid
President Joe Biden's resignation just a month before the Democratic convention is an unprecedented moment in US politics