John F. Kennedy was 43 when he was inaugurated in 1961. Marco Rubio will be 46 in 2016 when when he runs for the 2016 election and be about 5 month short of being 47 when he is inaugurated on January 20, 2017. Bob Dole and John McCain were old goats
.John f kenndy, may have been a shank from Yankee land, but he was a more than honorable WWII VET, and how many years has the boy wonder served. Comparing. Apples to Oranges .