The challenge with Donald Trump is that he'll deny things he said the day before or even in the same interview. And then sometimes when you try and talk about a fact that he misstated or something that he said out loud that he now disagrees with himself on, it's very frustrating.

It's hard to say what the Founding Fathers would think of the modern presidency.

In 1840, William Henry Harrison is the first one to really campaign as a candidate, and the campaigns were totally frivolous. I mean, people were drinking hard cider all day. They were big parades; no one was debating the issues.

John Dickerson Quotes