There shouldn’t be any questions about it. Sarah Longwell, a political strategist who knows what’s on voters’ minds by way of conducting countless focus groups, has some advice for Democrats: Pennslyvania Gov. Josh Shapiro should be Kamala Harris’ running mate. “Because it’s Josh Shapiro?” Longwell responded in a post from veteran reporter Peter Hamby asking whether Arizona Sen. Mark Kelly would make a good VP pick. Pennslyvania is a must-win state for Democrats in the 2024 election and Shaprio, the state’s former attorney general who was elected governor in 2022, is popular in the battlegroun…