Link , Link , Link , Link , Link , Link , Link , Link , Link , Link , [KEY FACTS "He is the worst candidate. The dumbest of all candidates," Trump said of former Vice President Biden. "He is the worst candidate in the history of presidential politics." Trump also expanded on his unproven claim that Biden is on drugs, stating, "they gave him a big fat shot in the ass… and for two hours, he is better than ever before. Problem is, what happens after that?" The first debate between the two candidates is scheduled for September 29th, with moderator Chris Wallace of Fox News, and Trump said Saturday, "we're going to ask for a drug test. We are. I'd like to have a drug test." At one point in the speech, Trump seemingly threatened to attempt to ban Biden from being elected President of the United States. "You can't have this guy as your president," Trump argued. "You can't have — maybe I'll sign an executive order, you cannot have him as your president."]