LAS VEGAS—Nathan Chen doesn’t miss. As he has done since his last loss at the Pyeongchang Olympics—yes, nearly three years ago—the dynamic Chen was nearly perfect and rather playful in winning the short program Saturday at the U.S. Figure Skating Championships on Saturday. Seeking a fifth straight national title, something no man has done since Dick Button from 1946–52 with seven, Chen put out the most difficult routine that any man anywhere attempts. He hit a quadruple lutz, triple axel and an excellent quad flip-triple toe loop combination in scoring 113.92 points. “I’m thrilled with the short program today,” said the two-time world gold medalist. “I made a couple little bobbles on the landings and wish I had skated a little bit cleaner but overall I’m really happy with the program. “The season, this whole year, I mean last year and leading into this year, has just been crazy and …