Lincoln was able to say, you know, "It will make me very unhappy if I lose the presidency, but I'm committed to larger things." If you look at candidates and say this is someone who can be happy to go back to their family or they have larger convictions. Franklin Roosevelt jeopardized his presidency by telling Americans in 1940, "We might have to fight Hitler." He loved being president, but he loved defending freedom more.

So the result was that as one approached a political convention for most of the 19th century and for most of the 20th century until the 1960's, part of the drama was the fact that you didn't know ultimately who was going to be the nominee at the end of that convention week.

First of all, there's no mention of political parties in the Constitution, so you begin American history with not only no political conventions but also no parties.

We [the United States] are the world's only superpower right now, so everyone notices every bit of what we do or don't do.

Legacy is what a president does that affects later generations.

You don't say that for a senator to be a great senator he has to vote against his constituency.

You have to raise $100 million, probably, to be serious.