The head of the union representing city correction officers, Norman Seabrook, said his group is going to "raise hell" for Bill Thompson.
Seabrook joined Thompson at the union's headquarters near Wall Street this morning to announce their endorsement. In 2001 and 2005, they had backed Bloomberg.
Seabrook said Bloomberg's economic policies were hurting middle-class New Yorkers, and "had I known then what I know now," the union would not have endorsed Bloomberg four years ago.
When asked how the union would "raise hell" for Thompson, Seabrook said they would distribute palm cards, talk to voters, man phone banks and generally increase the volume of criticism directed at Bloomberg.