Would picking Josh Shapiro actually help Harris in Pennsylvania?

Kamala Harris has reportedly narrowed her list of potential running mates down to three: Minnesota Gov. Tim Walz, Arizona Sen. Mark Kelly, and Pennsylvania Gov. Josh Shapiro.

All these contenders have their upsides. Walz is a Midwestern veteran who plays a great no-nonsense, folksy dad on TV and repeatedly won a Republican-leaning, rural congressional district before becoming governor. Kelly is a border hawk whose ascension to the Democratic ticket could theoretically mitigate Harris’s vulnerability on immigration. Plus, he’s been to space.

Nevertheless, a glance at the Electoral College map might lead one to believe that Shapiro is the obvious choice.