Republican candidates in Pennsylvania have work to do if they’re going to win two high-profile races over their Democratic counterparts in November. The latest poll from FiveThirtyEight shows U.S. Senate candidate Dr. Mehmet Oz with about 40 percent of the vote compared to opponent John Fetterman’s over 48 percent. In the race for governor, the poll gives state Senator Doug Mastriano 41 percent to Democratic Attorney General Josh Shapiro’s 48 percent.