Harris uses convening power to expand her political network

The vice president is building relationships with a wide array of Democratic allies, which she could leverage in the administration — and a future presidential campaign.

Kamala Harris took out her notebook and pen, put her elbows on the long shiny table and looked at the women surrounding her.

“Tell me what you got,” she said, according to one of the meeting’s attendees. It was a group of women labor leaders and women entrepreneurs there to discuss the pandemic recovery and getting women back to work.

The vice president was...