KIAWAH ISLAND, S.C. (AP) – Phil Mickelson makes history at the PGA Championship as the oldest major champion in history. The 50-year-old Mickelson shot 73. And that was enough for a two-shot victory over Brooks Koepka and Louis Oosthuizen. Mickelson is the 10th player to win majors in three decades. He will defend next year at Southern Hills in Oklahoma.