From the Wall Street Journal’s Kris Maher, who has a round-up of last night’s AFL-CIO-sponsored Democratic presidential debate (our emphasis):

All the candidates on stage said they would support labor initiatives and work to strengthen the middle class. But only Sen. Clinton mentioned a piece of legislation by name that is at the top of labor’s legislative agenda, the Employee Free Choice Act. The legislation would make it easier for unions to organize workers. Currently unions represent 12% of the workforce, from about 20% in the early 1980s.