Jon Cumberland Bruning (born April 30, 1969) is an American politician who served as the 32nd Attorney General of Nebraska from 2003 to 2015. A member of the Republican Party, he previously represented the 3rd district in the Nebraska Legislature from 1997 until 2003. He was a candidate in the 2012 United States Senate election in Nebraska, losing the Republican nomination to Deb Fischer and in the 2014 Nebraska gubernatorial election, also losing the nomination to Pete Ricketts.