Biden criticized Mitt Romney and what he called “the new Republican Party” for scapegoating public employee unions. He said unions were being blamed for "this godawful hole" that Republicans "put us in.”
It is the second time Biden has been asked to step in at labor events for the White House. Last Labor Day, he spoke to an AFL-CIO picnic in Ohio and pledged his support in what he called “a fight for the heart and soul of the labor movement.”
Biden rallies public employee unions in L.A. - latimes.com