When Rush Limbaugh first appeared on network radio, he was a rather interesting character. He had an almost “libertarian” tone to his commentaries, being critical of Republicans and Democrats, conservatives and liberals alike. On any given morning, he could be heard ripping into George Bush I, as well as Teddy Kennedy. He was, for a time, a critic of government itself, until the Republicans seduced him with an overnight slumber-party at the White House. From then on, he was talk-radio’s voice of the GOP....