Who's the changiest changer who can bring us the most change for a change? 

“What I say is, with Bill Richardson you get change and you get experience. You gotta have experience to change things."

Bill Clinton just finished the first of seven campaign events in Iowa today and tomorrow for Senator Hillary Rodham Clinton, and he’s using a phrase that voters are probably going to hear a lot this week: “Change agent.”

Sen. Barack Obama, flush from his Iowa presidential caucus win, yesterday brought his message of "change" here, trying to rally this state's large slate of independent voters and convert his momentum into a Democratic primary victory Tuesday.

"To get real change, we need a president who will stand up against the big corporations and powerful interests who control Washington," the former North Carolina senator [John Edwards] told about 250 people in Dubuque. "Nobody who takes their money and defends the broken system is going to bring change."

Fred Thompson: Well, you know, we’re all talking about change now, we had a– some folks vote in Iowa and everybody came out of there talking about change. Change has been a part of every election since the dawn of elections, if you weren’t an incumbent.

Since Huckabee's win in Iowa last week, Romney has retooled his message. He says voters want change, and that he is an outsider who can shake things up in Washington, D.C.

Ron Paul: Now, I am arguing the case that we ought to change our ways.

Huckabee said the nation needs generational change (Huckabee's 52) and "new ideas," and he said that's why he and Sen. Barack Obama (age 46) are doing so well. 

"I know that I have been an agent of change," McCain says. "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 pursued by Secretary Rumsfeld, which was needlessly causing the sacrifice of our most precious American treasure," McCain says. "I don't know of a better change than saving American lives."

"I know there's a lot of talk about change and change is a good thing; if you don't change you kind of step back, but there's change that's good and there's change that's bad," Giuliani said.

Sorry, I got distracted. What were we talking about again?