When Vice President Kamala Harris chose Tim Walz as her running mate, many pundits lamented her decision. In their view, the Democratic nominee should have chosen a vice presidential candidate who could mitigate her liabilities, and balance out her party’s ticket — such as Pennsylvania Gov. Josh Shapiro.
After all, Harris had been a liberal senator from one of America’s most left-wing states and then had run an exceedingly progressive primary campaign in 2020. To win over swing-state undecideds, she needed to demonstrate her independence from her party’s most radical elements. And selecting…