JOE BIDEN now looks almost certain to be the Democrats’ presidential candidate after sweeping to victory in Florida, Illinois and Arizona.
The former US vice president’s trio of wins doubled his lead over Bernie Sanders, and put further pressure on his only rival to abandon his campaign.
With the exception of North Dakota and the Northern Mariana Islands, Mr Sanders has not scored a victory since Super Tuesday on March 3.
Using a live stream to address supporters from his home state of Delaware, Mr Biden (pictured) paid tribute to his rival for advancing key issues like affordable health care and combating climate change.
‘Senator Sanders and his supporters have brought a remarkable passion and tenacity to all of these issues,’ he said. ‘So let me say, especially to the young voters who have been inspired by Senator Sanders, I hear you. I know what’s at stake. I know what we have to do.’
Mr Trump, meanwhile, formally clinched the Republican presidential nomination after facing minimal opposition.