**FILE** Rep. Kerry Bentivolio, Michigan Republican, waits for the start of a during a joint hearing with the House Natural Resources Committee and the House Oversight and Government Reform Committee on Capitol Hill in Washington, on Oct. 16, 2013. The hearing was looking at who was to blame for the closure of national parks because of the current government shutdown. (Associated Press)
Rep. Doc Hastings, Washington Republican, chairs a House Natural Resources Committee hearing on Wednesday, Jan. 26, 2011, on Capitol Hill in Washington. (AP Photo/Kevin Wolf)
Rep. Raul Grijalva of Arizona, the ranking Democrat on the House Natural Resources Committee, told National Journal this week that he may have been guilty of overreach even as he defended his probe into the funding sources of seven professors, now known as the "Grijalva Seven." (Associated Press)