Claire McCaskill: “I want to be on record on that.”

The culture wars? I've got to tell you, this time around, bring it, because I think that Democrats want to talk about abortion, and they want to talk about guns.

Maybe we'll learn that extremes are not healthy for general elections.

I think more importantly, what we're going to see, and this is what I really do believe, is that will we defy history by having the kind of turnout with the party who holds power and holds the presidency, will we have the kind of turnout…

This is never a referendum. Presidential elections, by the time they run around, is always, 'well, who do you like slightly better than the two you don't like?' So it is a binary choice.