His election killed America, but as liberal as he was, he would be different today.
JFK and FDR, and the democrats were as liberal as they could get away with at the time, today they would still fit in, for instance few know that JFK was pro-abortion, because it was not a big topic at the time.
I don’t think JFK would belong to the party of the religious right today and of Evangelical Christians.
I don’t think he’d belong to the contemporary Democrat Party either. As liberal as he was, it’s wandered way left of where he was.