The campaign of the Tea Party-backed Republican Senate candidate Rand Paul, meanwhile, is facing criticism after a volunteer was videotaped physically assaulting a protester. Lauren Valle of the group MoveOn.org was thrown to the ground by a group of Paul supporters before Paul’s debate with Democrat Jack Conway Monday night. As Valle lay on the ground, Tim Profitt, a coordinator for Paul’s campaign in central Kentucky, stomped on her head. She suffered a concussion and multiple sprains as a result. Paul’s campaign says it’s cuts ties with Profitt, who’s been charged with fourth degree assault.