John Edwards won the endorsement of the United Steelworkers and the United Mine Workers of America as more than 1,000 union members cheered the Democratic presidential candidate at a Labor Day rally and parade in Pittsburgh.
"America was not built on Wall Street. America was built by steelworkers and mine workers," Edwards told supporters.
The endorsements mean that Edwards now has more than any Democratic presidential candidate. The former senator from North Carolina also has secured the backing of the United Brotherhood of Carpenters and Joiners of America.