"Their core objective is to silence the voice of working people on the job," Mr. Goldstein said. "I think it's a tactic by the corporate interests to bust the unions."
Anti-union group's ad scores in Super Bowl →
"He's not for people having a right to vote on the union," Mr. Goldstein added. "He's for corporations being able to kick out the union and block the union from ever getting in."
Berman turns his eye to battling big labor →