No greasy fast food, here: Even when Bill Clinton is on the road he adheres to his plant-based diet. While campaigning in Las Vegas for his wife, Hillary, the former president popped into vegan cafe Simply Pure. Clinton was in great spirits, reports Politico, chatting with patrons and owner and chef Stacey Dougan. While scanning the menu, Clinton told Dougan, “I’d weigh 50 pounds more if I lived here because this looks so good. This…