LOCK HAVEN, Pennsylvania — Josh Shapiro may be heavily favored to win reelection as Pennsylvania governor, but that doesn’t mean there isn’t a lot on the line for him this year. The swing-state Democrat, an observant Jew who was targeted in an antisemitic arson attack last year, was considered as a running-mate to then-presidential candidate Kamala Harris in 2024, and is widely seen as a likely candidate himself in 2028. He has stood out among presidential hopefuls in his party for his continued support for Israel. A memoir published earlier this year discussed his Judaism at length and said that Harris’s vetting team had asked him whether he had at any time “been a double agent for Israel.” Shapiro is just beginning to hit the campaign trail, and wants voters to give Democrats control of the Pennsylvania state legislature for the first time in decades.…