Harris Is Beating Trump at His Own Game With an Influencer Army (3)

Chartreuse green. Coconut trees. Venn diagrams. They’re motifs of a “brat” summer that has memed Kamala Harris into a narrow but perceptible lead against the master of social media — Donald Trump.

Now, as she prepares to be coronated as her party’s nominee in a presidential campaign dominated more by vibes than policy, Harris needs to keep the momentum going. So she is turning to about 200 social-media influencers, who for the first time ever have received privileges such as access to delegates and studio space at the Democratic National Convention.

Deja Foxx during the DNC at the United Center in Chicago on Monday.

Photographer: Al Drago/Bloomberg

It’s a reflection of the campaign’s belief that social ...