The landscape of today's bitter conservatism is like an ugly skyline created by different twisted architects including Reagan and this Scaife creature mentioned above. But Limbaugh stands out as setting the standard for the depths of depravity that currently rules conservatism. The first Democratic president elected after Limbaugh's national syndication was Bill Clinton. I mark the tragic suicide of Vince Foster as the point at which conservatives habitually led scared, sheltered, whites down rabbit holes of conspiracy theories. What would have previously been dismissed as babblings of some rando crank, Limbaugh took to the national airwaves daily from 1993 up to his death preaching theories on how Foster was murdered by the Clintons, namely Hillary. And that was just the beginning.
The conservative media outlets and mouthpieces that flourished after Limbaugh (including Fox News) had to emulate his lack of character and integrity if they wanted to hone in on any segment of the conservative audience of which he was the rat king. Because of Limbaugh, the only facts that mattered to conservatives were the facts they want to believe. It also led the voices taken on by a.m. radio copycats dotting rural territory coast-to-coast.
Devoted republican voters today didn't get here without being ginned up into this frenzy of lies, anger and violence by Limbaugh. If it wasn't him, it may have been someone else, just as if there was no trump, maybe Sarah Palin would be president (not really though).