I asked Conway's campaign whether the man was a staffer or volunteer, and I'll update when I get an answer, but this is sort of a godsend--a liberal trying to make Tea Partiers look bad. That's really not new, and it may be more silly than malicious. Liberal counter-protesters with ironic signs often crash events in D.C.; in the Bush years, the pro-war Protest Warriors used to infiltrate rallies and wave signs that made liberals look stupid. But Tea Party organizers are increasingly obsessed with ousting liberal pranksters from their events and proving to the media that there's no actual racism in their own movement. Thus, video cameras; thus, stuff like this.
"The river was our source of water. Now, the people won't touch it. They are repulsed by it."