 He has more than two dozen lawmakers on the record saying they want him to stay on the ticket. That includes Arizona Senator Mark Kelly. Joe Biden is our nominee. Millions of people voted for Joe Biden to be on the ballot. He's on the ballot, and I truly believe he's going to win in November. But many lawmakers are expressing strong concerns about whether Biden has done enough to show the American public that he can campaign aggressively enough to defeat Donald Trump and are calling on the president to make a greater demonstration that he has what it takes to win.