About to begin his third year in office, President Kennedy looked welland felt good about his job.
Physically, he stays at a trim 175 pounds. He churns twice daily through the White House swimming pool without any sign of back twinges; he races through long processions of visitors without weariness, and occasionally even complains that there aren't more.
Mentally, Kennedy is clearly filled with confidence about his presidency. It showed in the tone of his State of the Union message, and it showed in his White House meeting last week with the leaders of Congress; he gave them only the barest...