I'll start with a very, very simple fact:
Fox News viewers were "significantly more likely to have misperceptions" about the Iraq war than all other media consumers (I know it's a Pub Discussion, but this particular post required a verifiable source). As you can see from the study, people that watched other networks have a much more balanced and objective understanding of the Iraq War. Fox News viewers are significantly more conservative than any other 24 hour news station (please tell me you don't need a link for this), therefore conservatives have an odd perspective.
All you really need to do, though, is look at the recent national debates. Obama was born in Kenya (which over half of Republicans believe)? H.R. 3200 has
death panels!? It seems the current conservative movement's creed is "absurdum ad nauseum", win by saying the most absurd things the most. Rigor mortis will be setting in soon at this rate. I wonder if the Whigs will come back...