Detailed text transcripts for TV channel - MSNBC - 20150830:17:32:00
Welcome back to "weekends with alex witt." to politics now, the new polls out of iowa with slipping numbers for hillary clinton. a poll of likely democratic caucusgoers has bernie sanders within seven points of the front-runner. clinton's support has fallen 20 points since may, putting her below 50% for the first time in a bloomberg-des moines register poll. the wild card in all of this still remains to be vice president joe biden. joining me now, former new mexico governor, u.n. ambassador to president bill clinton, bill richardson. mr. ambassador, i understand you're joining us on the phone....