Former third-party presidential candidate Ralph Nader Monday urged state Attorney General Tom Corbett to file charges against attorneys who "knowingly joined or aided" in the Bonusgate government corruption trial, including at least one attorney from Pittsburgh-based Reed Smith LLP.

"Reed Smith did indeed help coordinate the Nader challenge, however it has no knowledge of any bonuses paid to legislative staffers and had, on the contrary, been assured that any such volunteers had been working on their own time," the law firm said in a statement, calling Mr. Nader's accusations "wholly without merit."

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