Professor William B. Gould IV is quoted in Bloomberg in an article about opposition in Congress to the "card check" bill that is meant to make it easier for workers to form unions:

Senator Arlen Specter, a Pennsylvania Republican, said he opposes the “card-check” union organizing measure, dealing a setback to U.S. labor’s top legislative goal.

...

Senate Majority Leader Harry Reid, a Nevada Democrat, held out hope for the measure, saying Specter “is not the only Republican who has indicated a willingness” to support it. Specter’s decision may doom the proposal, said William B. Gould, a former head of the National Labor Relations Board.

“This is going to make it extremely difficult to get this bill passed,” Gould said.