The evidence is sufficient that we should move towards the most effective possible steps to reduce carbon loading of the atmosphere.

I think Jefferson and George Washington would strongly discourage you from growing marijuana, and their tactics to stop you would be more violent than they would be today.

What's the job of the candidate in this world? The job of the candidate is to raise the money to hire the consultants to do the focus groups to figure out the 30-second answers to be memorized by the candidate. This is stunningly dangerous.

I love the environment, but I'm cheap on the environment.

We need a dramatically expanded use of statecraft.

There was an analyst who came out the other day who's had a long track record of projecting presidential campaigns based on the economy and other kind of factors. And he said if [Donald] Trump stays about where he is right now, he'll win at about 51 or 52 percent. If Trump actually gets his act together in a disciplined way, he could win by as much as 66 percent.

I think Ron Paul's views are totally outside the mainstream of virtually every decent American.