 And yet on that core question of how we can turn the tide, we really don't know what the plan is. The AP's Sagar Magami has more on that. Despite growing Democrat calls for him to step aside, he insists the American people back him. And I think I'm the best qualified to win. Still, the president notes he does need to allay fears about his age and fitness. If I slow down, I can't get the job done. That's a sign.