Rolling Stone:

Indeed, no Democrat has made a stronger play for union backing than -- Edwards: Since 2004, he has participated in more than 180 labor events -- including a hunger strike for immigrant janitors in Miami -- for twenty different unions. In 2006, while Clinton was burning through $30 million on her shoo-in re-election campaign in New York, Edwards was campaigning for initiatives to increase the minimum wage in six key states. While other candidates have little time for labor-hall rallies -- the PR firm of Clinton's chief strategist, Mark Penn, has actually engaged in union busting -- Edwards has made labor a central element of his anti-poverty campaign. On the stump, he calls collective bargaining the key to "making work pay" and lifting low-wage Americans out of poverty.

Hey, Hillary's still got union-busting Mark Penn strategerizing for her, right? Has anyone on the campaign trail asked her why? If Hillary does indeed take questions?

"This is a true commitment on his part," says Anna Burger, chair of the labor federation Change to Win. "He was doing this when there were no cameras watching him. We needed a spotlight on workers, and anything he could do to raise their profile, he was willing to do that. His special relationship with labor is forcing the other candidates to play catch-up."

Interesting.