The billionaire, who died Friday, understood the power of changing ‘hearts and minds.’ He spent almost unlimited money on behalf of limited government.

Since the 1970s, the Kochs have spent at least $100 million — some estimates put it at much more — to transform a fringe movement into a formidable political force aimed at moving America to the far right by influencing the outcome of elections, undoing limits on campaign contributions and promoting conservative candidacies, think tanks and policies.