Former hedge fund CEO David McCormick conceded the Republican primary in Pennsylvania for U.S. Senate to celebrity heart surgeon Dr. Mehmet Oz, ending his campaign as he acknowledged an ongoing statewide recount wouldn't give him enough votes to make up the deficit.
After a bitter campaign that blanketed the airwaves with millions of dollars in attack ads, McCormick issued a gracious concession Friday, vowing to help unite the party behind Oz.
