What does the Kerry endorsement of Obama mean?

Well for one thing, Mr Edwards chances to achieve the Democratic nomination just took a big slap. I mean if you can't even get endorsed by your former running mate, who can you get endorsed by?

The main thing I think this endorsement does is offset a bit of the Clinton mystique in the Democratic party against Barack Obama. Kerry is still very popular within the democratic party, and can bring significant resources to the Obama campaign. Whether that happens or not is still to be seen, although it is rumored that Kerry's 3 million e-mail list is about to get a message from Obama.

For all intents and purposes, what the endorsement does is absolutely narrow the Democratic primary race down to Clinton and Obama, with Edwards relegated to running for VP again. If Edwards can't pull out a victory in South Carolina or Florida (if he lasts that long), I would expect him to finally hang up the guns, and move to the sidelines.