"You provide the safe neighborhoods, you provide the good schools, you provide the hospitals. We owe you!" Biden declared.
Labor won one, lost one, and had one key issue still up in the air in the latest action in the Republican-run Michigan legislature.
Civil rights groups and sympathetic lawmakers were prompted to draft legislation creating an alternative route for workers to get justice against Walmart.
A spirited march of 150 youth and adult supporters stopped downtown traffic to honks of support on Saturday.
A coalition of unions and progressive groups launched a grassroots effort to end the Bush tax cuts by the end of this year.
A Republican minority in the Senate blocked a vote today on equal pay for women after unions and their allies challenged Romney to back the legislation.