FACTBOX: Quotes from Republican candidates debate

(Reuters) - Republican presidential candidates met in a Fox News Channel forum on Sunday ahead of Tuesday's New Hampshire primary, the next contest in the state-by-state battle to determine the nominees for the November election.

Here are some key quotes.

MIKE HUCKABEE, FORMER ARKANSAS GOVERNOR:

"We all love to invoke the name of Ronald Reagan. Let's not forget, with all due respect, Ronald Reagan was the one who signed the amnesty bill back in the '80s that's given us the mess now. We all love him, we all want to be like him, but even Ronald Reagan can make mistakes."

MITT ROMNEY, FORMER MASSACHUSETTS GOVERNOR, in exchange with Huckabee over their tax-cutting records:

"You know, Mike, you make up facts faster than you talk, and that's saying something. So let's slow it down and let's get the facts correctly."

SEN. JOHN MCCAIN, ARIZONA:

"I know that I have been an agent of change. I'm proud to have been one of those who played a key role in bringing about one of the most important changes in recent years and that was the change in strategy from a failing strategy in Iraq."

FRED THOMPSON, FORMER TENNESSEE SENATOR:

"My friend Mitt thinks expertise is important in all areas except national security. And of course, it is more important nowadays than it's ever been before."

RUDY GIULIANI, FORMER NEW YORK MAYOR:

"You go through every single record here, every single candidate, you're going to find that they have, at certain points, made mistakes along the way. If they haven't, they probably have never done anything. In my case, I've done a lot of things. I've made my share of mistakes. When I do, I own up to them. I learn from them and I don't make them again."

(Compiled by Joanne Allen in Washington; Editing by Eric Beech)