*snip*Nowhere on the site was any indication of who was responsible for it. But a series of inquiries led to "Under the Power Lines," the Web site of the political consulting firm of J. Warren Tompkins, Romney's lead consultant in South Carolina. Tompkins did not return phone calls seeking comment. Late yesterday afternoon, a spokesman for Thompson called on Romney to fire Tompkins. "There is no room in our party for this kind of smut. As the top executive of his own campaign, Governor Romney should take full responsibility for this type of high-tech gutter politics and issue an immediate...