Kamala Harris selects Minnesota Gov. Tim Walz as her running mate; how does Donald Trump respond? Kim Strassel asks Trump National Press Secretary Karoline Leavitt, who brands Walz "one of the most far-left governors" in the country and says Harris bowed to progressives by skipping over Pennsylvania Gov. Josh Shapiro. Also, the campaign's reaction to the latest Iranian aggression, Trump's future plans for Russian sanctions, and Republican moves to expand the electoral map, including to Walz's Minnesota.

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