 The campaigning on hold for President Biden as he self-isolates in Delaware. He just tested positive for COVID. I'm Clayton Neville. A new poll sharply undercuts President Biden's claim that average Democrats are still with him. Sagar Magani, Washington. J.D. Vance delivers his acceptance speech. We need President Donald J. Trump. As Republicans prepare to wrap up their convention. I'm Steve Futterman in Milwaukee.