The crossword solutions for the term JFK, BUT NOT LAX are 'PRES' and 'DEM'. JFK stands for John F. Kennedy, the 35th President of the United States, who served from 1961 until his assassination in 1963. He was a Democrat, and was the first Catholic president. LAX stands for Los Angeles International Airport, which is located in California. JFK is an airport in New York City, named after President Kennedy.