sentences:  As his star ascends, he persuades his now struggling parents to join his act, eventually vesting some of his valuable theatrical properties in their name.Cohan retires, but returns to the stage several times, culminating in the role of the U.S. president.As he leaves the White House, after receiving the Congressional Gold Medal from the president, he descends a set of stairs while performing a tap dance (which Cagney thought up before the scene was filmed and undertook without rehearsal).