Edwards has become relevant

Very interesting development. While for months Hillary was the only Dem of any relevance, over the past month Hillary's camp started attacking Obama, big-time - a sign that Obama had suddenly become relevant. Well, now the transitive property of relevance (okay, I made that up) is making Edwards relevant - namely, Obama is now attacking Edwards when before he was mostly focusing on Hillary. That means that Obama sees Edwards as a threat as well, and that means Edwards is now officially relevant. It's actually turning out to be an interesting race.