State Democrats filed an ethics complaint Monday against Republican U.S. Sen. Ron Johnson over the $10 million deferred compensation package he received from the plastics manufacturing firm he ran before joining the Senate.

Kory Kozloski, executive director of the Democratic Party of Wisconsin, wrote to the U.S. Senate ethics committee asking it to open an investigation to determine if Johnson violated Senate ethics rules and federal law.

Johnson received $10 million in deferred compensation from Oshkosh-based Pacur shortly before he was sworn into the Senate. During his 2010 campaign to unseat Democrat Russ Feingold, Johnson spent $9 million out of his own pocket to fund the race. Read More