FILE - In this Nov. 1, 2013 file photo, U.S. Rep. Tom Cotton, R-Ark., speaks at a meeting of university officials in Little Rock, Ark. Former Chief Justice Jack Holt Jr. Holt, a Democrat, filed an ethics complaint questioning Cotton's work for a management consulting firm claiming the freshman lawmaker violated House rules by not identifying any of the clients for whom he provided services in excess of $5,000. Republican Cotton is running for the U.S. Senate seat now held by U.S. Sen. Mark Pryor, a Democrat. (AP Photo/Danny Johnston, File)