Former US President Donald Trump turned his sights on his rival Joe Biden after securing the Republican Party nomination on March 12, calling the incumbent the “worst president in the history of our country” and saying “he must be defeated”.Both Biden and Trump became the presumptive nominees for their parties on Tuesday, after Biden got an allocation of delegates from Georgia and Trump won Washington state’s primary.In this video message posted to X, Trump said that it was a “really great day of victory” and outlined his position on key areas for his campaign, such as border control and the economy.“Now we have to get back to work because we have the worst president in the history of our country, his name is Joe Biden,” Trump said.Biden started his campaign on Tuesday with a video posted to his official X account stating that he had “clinched the nomination.” Credit: Team Trump via Storyful