CNN) — President Obama made a major endorsement Thursday, announcing his support for the Pittsburgh Steelers in this Sunday’s Super Bowl showdown. “I wish the Cardinals the best. Kurt Warner is a great story, and he’s closer to my age than anybody else on the field,” he said. “But I am a longtime Steelers fan. Watch Obama make his Super Bowl pick “Mr. Rooney, the owner, was just an extraordinary supporter during the course of the campaign. Franco Harris was campaigning for me in Pittsburgh…Coach [Mike] Tomlin was a supporter.