Never underestimate people.

I've never seen a candidate - I've never seen a human being - who, with the most limited briefing, can understand the dimensions, the parameters, the nuances of everything of any kind of a policy or political problem.

Don't get mad. Don't get even. Just get elected, then get even.

What's the real difference between Republicans and Democrats? Let me tell ya the real difference ... Republicans will always take on people in the interest of power and good democrats will never fear to take on the power in the interests of people.

Why are you sitting here when our democracy is under assault with the FBI acting at the behest of [Republican Congressman] Jason Chaffetz and sitting here acting like it is something legit?

Never underestimate people.

Ideologies aren't all that important. What's important is psychology.