(S (BASENP (PRP He)) (VP (VP (ADVP (RB also)) (VP (VBD co-chaired) (BASENP (DT the) (NNP Congressional) (NNP Progressive) (NNP Caucus)))) (CC and) (VP (VBZ is) (NP (DT a) (NP (JJ self-described) (QT (DQL ``) (QTC (BASENP (NNP Wellstone) (NNP Democrat)) (PERIOD .)) (DQR '')))))))