What color is the sky in Dick Cheney's world?

In response to a request from the National Archives (per an order signed by President Bush), Vice-President Dick Cheney refused to provide information because, according to the Federal Times, Cheney argued that “the Vice President’s Office is not an entity within the executive branch.” (Cheney is claiming that he is president of the Senate and, therefore, not a member of the executive branch.)

Article 2, Section 1 of the U.S. Constitution says: "The executive Power shall be vested in a President of the United States of America. He shall hold his Office during the Term of four Years, and, together with the Vice President, chosen for the same Term..."