Democrat John Fetterman’s shaky performance in last month’s debate with Republican Mehmet Oz has led to a much tighter Pennsylvania U.S. Senate race less than a week before Election Day. The latest USA TODAY/Suffolk University Poll released Wednesday shows Fetterman leading Oz 47-percent to 45-percent. In late September, Fetterman had a 46-to-40 percent lead over Oz. An unusually high 19-percent of independent voters say they haven’t decided who they’ll vote for. Fetterman struggled to state answers to questions at times in the debate, a lingering effect of the stroke he suffered in May.