Ohio republican Congressman Jim Renacci (reh-NAY'-see) has returned 100-thousand dollars in campaign contributions amid an FBI inquiry into their source. The FBI has previously questioned employees of Canton-based Suarez Industries about combined donations to Renacci and republican State Treasurer and U.S. Senate candidate Josh Mandel, who returned 105-thousand dollars in contributions in May. The FBI was seeking donor records for retail marketing executive Benjamin Suarez, his family members and employees of either the congressman or Mandel.