Talk about parties changing.
JFK is so far right, not only would he NOT fit in todays Democratic Party, he would be considered Right Wing in the Republican Party!
"Ask not what your country can do for you, ask what you can do for your country".
That is so far from where the Dems have been for decades, he would not be nominated Dog Catcher by them. He would assuridly be racist by the standards they have today.