The President of the United States could then take total control of a state's National Guard units without the governor's consent.[59] In a letter to Congress, all 50 governors opposed the increase in power of the President over the National Guard.[60] The National Defense Authorization Act of 2008 Pub.L. 110–181 (text) (pdf) Repeals provisions in section 1076 in Pub.L. 109-364 but still enables the President to call up the National Guard of the United States for active federal military service during Congressionally sanctioned national emergency or war. Places the National Guard Bureau directly under the Department of Defense as a joint activity. Promoted the Chief of the National Guard Bureau from a three-star to a four-star general.[5] The National Defense Authorization Act of 2012 Pub.L. 115–91 (text) (pdf) Added the Chief, National Guard Bureau to the Joint Chiefs of Staff.[61]