Jack Kemp

Peggy Noonan at her best, describing the Happy Man:

Jack knew how to lead. He spoke of ideas with affability and authenticity. He wasn't angry and dark and simmering, didn't glower. He had the power of the happy man. "Sometimes now the cost of admission into politics is bitterness, bile and guile," said the pollster Kellyanne Conway. He was old-style, and humane. Ms. Conway got her first job in politics as an intern in Kemp's office. "Who are you?" he once said. "I'm just an intern here," she said. "No one is just an intern here," he replied.

You might go the distance for a leader like that.