A judge on Monday admonished attorneys about playing legal games shortly after they convened for the start of the federal bribery trial of Sen. Robert Menendez, D-N.J. "There's been too much gamesmanship here," Judge Sidney Stein told prosecutors and defense attorneys before jury selection began for the trial in federal court in Manhattan. "Everybody has to operate in good faith here," Stein said, adding, "I'm not sure I've seen that." Menendez, 70, wearing a dark suit and striped red tie with his gold senator's pin on his lapel, listened silently in the courtroom. Two of his co-defendants, New Jers