By Justin Sink
There was one sign of encouragement for Republicans in the Times poll, however. Sen. Bob CaseyBob CaseyDems to GOP: Help us fix ObamaCare Enough bickering, time to stay focused on important issues: Pennsylvania holds keys in Clinton-Trump tilt MORE (D-Pa.) held only a six-point lead over Republican challenger Tom Smith — a promising showing against an incumbent considered safe. While a Franklin & Marshall poll also released Wednesday gave Casey a 10-point lead, the Pennsylvania lawmaker's advantage has seen a significant dip from earlier this year. At the beginning of August, the Times gave Casey an 18-point lead, meaning Smith has gained 12 points in the past two months.