The Vice President and his representatives have asserted that GAO lacks the statutory authority to examine the activities of the NEPDG, recognizing only GAOas authority to audit its financial transactions.
( ( ( ( The ( Vice President ) ) and ) ( his representatives ) ) ( ( have ( asserted ( that ( GAO ( lacks ( the ( statutory ( authority ( to ( ( ( examine ( ( the activities ) ( of ( the NEPDG ) ) ) ) , ) ( ( recognizing ( only ( GAOas authority ) ) ) ( to ( audit ( its ( financial transactions ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NNP Vice) (NNP President)) (CC and) (NP (PRP$ his) (NNS representatives))) (VP (VBP have) (VP (VBN asserted) (SBAR (IN that) (S (NP (NNP GAO)) (VP (VBZ lacks) (NP (DT the) (JJ statutory) (NN authority) (S (VP (TO to) (VP (VB examine) (NP (NP (DT the) (NNS activities)) (PP (IN of) (NP (DT the) (NNP NEPDG)))) (, ,) (S (VP (VBG recognizing) (NP (RB only) (JJ GAOas) (NN authority)) (S (VP (TO to) (VP (VB audit) (NP (PRP$ its) (JJ financial) (NNS transactions)))))))))))))))) (. .)))
The Vice President is also personally upset and has expressed much anger over this issue. 
( ( The ( Vice President ) ) ( ( ( ( ( is also ) ( personally upset ) ) and ) ( has ( ( expressed ( much anger ) ) ( over ( this issue ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNP Vice) (NNP President)) (VP (VP (VBZ is) (ADVP (RB also)) (ADJP (RB personally) (JJ upset))) (CC and) (VP (VBZ has) (VP (VBN expressed) (NP (JJ much) (NN anger)) (PP (IN over) (NP (DT this) (NN issue)))))) (. .)))