Shapiro’s Agility and Appeal Give Him Edge in Running-Mate Race

National intrigue trailed Pennsylvania Governor Josh Shapiro as he arrived at a rally in Philadelphia, the most liberal corner of the country’s most important swing state.

Speaking to a heavily Democratic union crowd last week, Shapiro, 51, showed the energy that has helped land him on the short list to be Vice President Kamala Harris’ running mate as he slammed Donald Trump for trying to restrict collective bargaining rights.

“This is who this man is: screwing over the little guy for the corporate interests,” Shapiro said to cheers. “We don’t need to give him the keys to the White ...