Scaife’s extraordinary self-financed and largely tax-deductible vendetta against Clinton demonstrated the impact that a single wealthy extremist could have on national affairs, and served as something of a dress rehearsal for the Kochs’ later war against Obama. Presidents might surround themselves with Secret Service agents and phalanxes of lawyers and operatives, but Scaife proved how hard it was to defend against unlimited, untraceable spending by an opponent hiding behind nonprofit front groups.

