As questions about Biden mount, Kamala Harris sports better polls, more appearances, puff pieces

President Biden’s lackluster debate performance has turned the spotlight to Vice President Kamala Harris, who has started to show off a more visible campaign role as November approaches.

Harris suddenly figures to play a defining role in the campaign down the stretch, a turnaround for a vice president that many critics have panned as a potential liability for Democrats in November.

The negativity surrounding Harris even garnered calls for the vice president to step away from the campaign as recently as March...