"It should have been evident to clear-eyed observers that the Republican Party is becoming less and less like a traditional political party in a representative democracy and becoming more like an apocalyptic cult, or one of the intensely ideological authoritarian parties of 20th century Europe. This trend has several implications, none of them pleasant."
Read the rest on TruthOut.org.
When I was in college in the 1960s I took a couple Political Science courses dealing with American political extremism. The link above is to one of the best articles I've read on the subject since then. If you're at all interested in what's happening in American politics today, I believe this is a MUST READ article and I recommend it very highly.