John Edwards has picked up the endorsement of another SEIU local, this time in Massachusetts. This is on top of the support of SEIU locals in Iowa — perhaps the biggest prize of the primary season — plus California, Washington, Michigan, Idaho, Montana, Minnesota, Ohio, West Virginia and Oregon.

Although Edwards failed to win the national SEIU's backing, he has far outpaced the competition in winning the state chapters. His closest competitor so far is Barack Obama, who only has the Illinois, Indiana and Missouri-Kansas locals.