President Obama waves before boarding Air Force One prior to his departure from Andrews Air Force Base on June 26. Jose Luis Magana/AP hide caption

itoggle caption Jose Luis Magana/AP

Lt. Gov. Mark Darr and his wife Kim give an interview at the Arkansas Capitol building on Monday. After weeks of pressure to step down from both sides of the aisle, Darr announced his resignation on Friday. Danny Johnston/AP hide caption

itoggle caption Danny Johnston/AP

Michigan Rep. Kerry Bentivolio listens at a Nov. 4, 2012, rally in Livonia, Mich. The suburban Detroit congressman has said it would be a "dream come true" to seek the impeachment of President Obama. Paul Sancya/AP hide caption

itoggle caption Paul Sancya/AP