Political scientist James Joyner writes:
Limbaugh’s schtick ultimately transformed the conservative movement in destructive ways because it showed how lucrative playing to the predudices of an aggrieved base can be…
a business model that depends on keeping people riled up and feeding their belief system will inevitably become mean-spirited and dishonest. Discussions of nuanced differences of emphasis—which is where politics in a democracy should naturally gravitate—aren’t enough to get millions to tune in for three hours a day, every day. No, the opposition must be monsters out to destroy all that the Good People hold dear.