P.M. Edition for June 21. Nvidia’s value has skyrocketed, pushing the S&P 500 to record-breaking highs, but many other companies in the index have traded lower. Wall Street Journal senior markets columnist James Mackintosh explains why that split could be risky. And the U.S. Supreme Court upheld a federal law that forbids domestic abusers from possessing guns in a major Second Amendment decision. Plus, reporter Jim Carlton on how San Francisco is using its cool weather to attract tourists. Alex Ossola hosts.

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