UPDATE: Clinton joins the boycott: "We believe Iowa, New Hampshire, Nevada and South Carolina play a unique and special role in the nominating process,'' said campaign manager Patti Solis Doyle. "And we believe the DNC’s rules and its calendar provide the necessary structure to respect and honor that role."

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Democratic presidential candidates to Florida: Drop dead. John Edwards and Barack Obama sign the pledge promising not to campaign in Florida. As it now stands, every Democrat except Kucinich and Gravel have decided to let Republicans have Florida to themselves for the next few months. Raise your hand if you think these Democrats will decline to raise money in Florida too.

Edwards: "Iowa, New Hampshire, Nevada, and South Carolina need to be first because in these states ideas count, not just money. These are places where voters get to look the candidate in the eye and measure their policies, ideas, and integrity."

Obama campaign: “Because states that violate DNC rules will not be allowed to contribute to the delegate tally, we urge all states to ensure their compliance with DNC rules so they can participate in our Democratic nominating process. Our campaign will work within the rules established by the DNC to earn the support of Democrats across Americaand run a grassroots campaign to unite Americans around Senator Obama’s commitment to challenging the conventional thinking in Washington.”

Clinton campaign (earlier Saturday): "We've received the letter and we are reviewing it. Sen. Clinton is 100% committed to campaigning in Iowa, Nevada, New Hampshire and South Carolina. She believes that these four states have a unique and special role in the process. There are other states that are going through a process now and we are going to let that process play out. But no matter what happens with those states, that will not affect our committment to these four states and we will compete in those states no matter what day those primaries or caucuses are held."