When our Rebuild America Defeat Obama tour bus rolled into downtown Dayton Ohio, the hostile vibe from blacks on the streets filled the air. A young black man called our team, Romney and Ryan "M-F-ers" before walking away. I went to find a restroom and passed a group of young blacks on a street corner murmuring about our tour buses. A young black staffer on our team said he thought he was going to have to break out his Chuck Norris skills.