Hardball with Chris Matthews 09/08/15

Haley Barbour on Trump, Carson and 2016

Donald Trump and Ben Carson together have over 50 percent support in the latest Iowa polling, while big names like Jeb Bush, Marco Rubio and Scott Walker are stuck in single digits. Former RNC chairman Haley Barbour weighs in on the 2016 race. ... more Duration: {{video.duration.momentjs}}