Jeffrey David Cox Sr., center, American Federation of Government Employees (AFGE) International President, right, listens as Carolyn Federoff, center, talks to Shawn Edward on, Saturday Nov. 3, 2012, ... more 
Jeffrey David Cox Sr., center, American Federation of Government Employees (AFGE) International President, right, listens as Carolyn Federoff, center, talks to Shawn Edward on, Saturday Nov. 3, 2012, in Boston's Roslindale neighborhood. Cox Sr. joined local union members and Massachusetts labor leaders to “walk, knock and talk” campaign to help Massachusetts Democratic candidate Elizabeth Warren in her bid for the U.S. Senate. (Bizuayehu Tesfaye/AP Images for American Federation of Government Employees) less 
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Associated Press
Sat, Nov 3, 2012 4:57 PM EDT