HARRISBURG, Pa. (AP) — Control of the U.S. Senate could depend on whether Pennsylvanians elect Democrat John Fetterman or Republican Dr. Mehmet Oz. Lt. Gov. Fetterman spent much of the campaign recovering from a stroke while fending off attacks by Oz about his fitness to serve. In their lone debate, Fetterman turned in a rocky debate performance that fueled concern it damaged his chances. Oz is a smooth-talking and wealthy heart surgeon-turned-TV celebrity who just moved from his longtime home in New Jersey. He barely won a primary in which opponents cast him as an out-of-touch Hollywood liberal. Pennsylvania polls are open from 7 a.m. to 8 p.m.