CNN Anderson Cooper 360 Post Debate Special October 29, 2015 05:28:00
>> one of the most shocking moments is when ben carson was scad about his economic plan. this is a cnbc debate and they were told they wanted to talk about tax policy. ben carson couldn't explain what his tax rate would be. between 10% and 15%. the math works. the moderator said i did the math. that was the worst moment of the debate. something so central to the republican philosophy, tax reform, had a front-runner who failed utterly at it the. >> i was very curious to see what the dynamic was going to be between carson and trust. we've seen trump going after him in the last couple of days, si...