With Pennsylvania’s county election administrators continuing to chew through mail-in and absentee ballots Thursday, the front-runners in the nearly deadlocked Republican U.S. Senate primary offered both argued that their paths to victory remained wide open. That case seemed a little bit easier for Dr. Mehmet Oz’s team Thursday night, as the cardiac surgeon-turned-daytime television superstar still held a 1,123 vote lead over former Wall Street executive David McCormick. As of presstime for this story, that broke down as follows: Oz, 417,719, or 31.2 percent; McCormick 416,596, or 31.1 percent. That’s with an estimated 98.6 percent of the vote in, according...