HARRISBURG (AP) – Heart surgeon-turned-TV celebrity Dr. Mehmet Oz and former hedge fund CEO David McCormick are locked in a too-early-to-call race for the Republican nomination to fill an open PA U.S. Senate seat. Vote counting continued Wednesday. Some counties have yet to tabulate election-day and mail-in ballots. Meanwhile, counting of provisional, overseas, and military absentee ballots could last past Friday. The race remains close enough to trigger the Commonwealth’s automatic recount law.