Hardball with Chris Matthews 08/31/15

Donald Trump, Ben Carson tied in new Iowa poll

Some surprising new polls out of Iowa show Hillary Clinton and Jeb Bush sliding while Donald Trump and Ben Carson surge. That might as well sum up the state of play in the 2016 election as we approach the end of summer. The Washington Post’s Robert Costa and Eugene Robinson and Republican strategist Liz Mair discuss. ... more Duration: {{video.duration.momentjs}}