premise: In addition to the arguments previously advanced by the Vice Presidentas representatives and addressed in our June 22 letter to the Counsel to the Vice President ( see Enclosure 1 ) , the Vice Presidentas August 2 letter to the Congress asserts that the study is not authorized by statute because GAO is limited to looking at the aresults- of programs and that GAO does not have a right of access to documents because the Vice President is not included under the term aagency- used in GAOas statute .
hypothesis: Congress received no letter from the Vice President on the topic of GAO 's study .