In the early 1990s when President George Bush had John Sununu as his White House chief of staff, a reporter asked Sununu if his job was difficult. He quickly answered, "No." The reporter thought Sununu had misunderstood the question, so he asked again, and got the same reply.
Sununu, a former governor of New Hampshire, then explained why he felt his job was easy: "I have only one constituent." He knew his job was to please the President.