JFK? Um, on the positive side, started a revamp of the military, gave the NASA bureaucracy a tangible and measurable goal, and wanted tax cuts (they were passed in memoriam).
On the negative side, protected the runt of the litter that is still screwing up the country to this day (and also got the middle brother killed), Bay of Pigs, and much, much, more.
“On the negative side, protected the runt of the litter ...”
You mean Fredo Kennedy?