Politics and pugilism met Saturday as Mitt Romney viewed a Las Vegas matchup between Manny Pacquiao and Juan Manuel Márquez. “Hello, Manny. I ran for president. I lost,” Romney said in a prefight visit to Pacquaio’s dressing room, according to the brawler’s publicist. Romney was joined by his wife, Ann, for the fight at the MGM Grand hotel arena. A bloodied Márquez secured a victory in the sixth round Saturday, dropping Pacquaio to the mat with a snarling right punch and bringing an end to a four-fight rivalry.