For Massachusetts Democrats, running for office usually means kissing the ring of organized labor, and hoping union endorsements follow.  In a tough race, union support can be pivotal—think of Elizabeth Warren’s win over Scott Brown in 2012 or Marty Walsh’s mayoral victory last year.  But in the primaries, labor’s influence is harder to peg. In part two of our Focus report – WGBH News Reporter Adam Reilly looks at several key races – where the mantle of union champion is up for grabs. 


Chris Condon is the Political and Legislative Director of SEIU Local 509.

David Bernstein is WGBH News' Political Analyst, and Contributing Editor to Boston Magazine.