Was Biden's "Big Boy Presser" Enough?

Jon and Dan break down Joe Biden's big press conference, whether he did enough to calm nervous Democrats, and whether he's making a sharp enough case against Donald Trump—or for himself—to move the numbers and create a plausible path to victory. Plus, the latest signals from the campaign about what its strategy will be going forward, and how the Trump veepstakes is playing out with only days left to go.