Vice President Kamala Harris took the stage on Tuesday at a campaign rally in Atlanta in front of a crowd of thousands. She was joined by some celebrity heavy hitters, including rappers Quavo and Megan Thee Stallion. The rally underscores the surge of voter enthusiasm we've seen since Harris stepped into the presidential race. Her next major task is picking a running mate, a decision she's expected to make in the next couple of days. And on the Republican side, Ohio Sen. J.D. Vance offers a cautionary tale of how a problematic V.P. pick can drag down a campaign's momentum. Kadia Goba, political reporter for Semafor, breaks down the Democratic veepstakes.

And in headlines: The head of Project 2025 is stepping down, the U.S. Senate passed a bill requiring tech companies to actively shield kids from dangerous content online, and Simone Biles led Team U.S.A back to Olympic gold in the women's gymnastics team finals.

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