PHILADELPHIA — As expected, Republican David McCormick received the endorsement of the Pennsylvania GOP Saturday in his second run for the U.S. Senate. What a difference a year makes. That the Republican Party is fully behind the Gulf War veteran and former hedge fund CEO is in contrast to last year, when McCormick, 57, lost a close GOP primary race to celebrity doctor Mehmet Oz. After much speculation, the native of Washington, Pennsylvania, who now has homes in Pittsburgh and Connecticut, officially entered the Senate race last week, after nearly 100 prominent Republicans wrote a public lett...