Ues, yes he can. He is Trumps biggest threat. (Keep proping Biden up. This will be the biggest crushing defeat since Mondale or McGovern. Stop beating him down until he secures the nomination!
Securing the nomination is nothing. We need to keep him erect and talking until November 4th, or the Democrats can sneak in a stealth candidate like Cankles or Crazy Bernie. Hussein is term-limited out via the 22nd Amendment, and neither Mooshelle nor Oprah want the job from what I hear.
Let's hope we don't need a "Weekend at Bernie's" scenario with Quid Pro Joe.