Idealism vs. Realism

Much has been written on the idealism of Obama versus the realism of Hillary, and I'm sure more will be written before all is said and done. But here's one point I don't think I've seen yet: if I remember correctly, in most, if not all of the primaries so far, Obama has gotten much of the under 40 vote while the 50+ is going to Hillary. At the same time, since the Ted Kennedy endorsement, Obama has been compared numerous times to his brother, JFK. Perhaps the 50+ group is going to Hillary because they actually lived through the JFK years and beyond, and while they may remember the idealism of the time and the positive, uniting message that JFK disseminated with fondness, how do they feel about his actual actions in office? How do they feel about whether or not that idealism and unity actually translated into something concrete?

I don't profess to know the answer; but I think it's something to think about. How does a president get the real hard stuff done? And perhaps the returns from tonight will prove this wrong. Just a thought.