John F Kennedy was arguably the most popular president(I'm not just guessing I have read and researched this :-) His approval rating never fell below 55% and it is hard to find someone that has something negative to say about him. He went into office during a time of racial controversy and international instability, yet he still managed to gain the public's approval and please all(all races, religions, etc.) He is the youngest president(ever, to this day) yet one of the few to win over the public as a whole.