Ruth Milkman in Politico.com

Organized Labor Wants Joe Biden to Run

Politico.com, 9.7.15
"The membership has changed dramatically over two decades and it mostly has to do with the decline of private-sector unions and the survival of public-sector unionism. Women and people of color are overrepresented in the public sector," said Ruth Milkman, a labor expert at the CUNY Graduate Center. The movement is not homogenous, union members of different types are distributed very differently over different industries and different individual unions."