I would like to mention that a couple days ago Senator Obama was out in Ohio and he had an encounter with a guy who's a plumber, his name is Joe Wurzelbacher.

Many good people mistake their reputation for their character. It is a mistake I have made many, many times.

It seems to me that President Carter has earned his place as if not the worst president in history, the worst president of the 20th Century.

[Several candidates talked of problems with the federal Medicare system, particularly concerns about whether it would cover prescription drug costs in the future.] We're asking senior citizens to make a choice between their health and their income, ... Medicare is probably the most difficult challenge we face in the next century, because it has a lot to do with other things besides money.

The only way you approach politics and seek elective office is to move forward. For me to look back in anger or with any rancor would be a mistake.

I say that the United States of America is a unique experiment in history. I believe in American exceptionalism. I wasn't for sending ground forces into Libya. It would have been counterproductive, but we are an inspiration to these people. I know because I've looked them in the eyes, and they looked at me. They look to America for inspiration and leadership.

I say to our enemies: We are coming. God may have mercy on you, but we won't