They most certainly cannot. I posted a topic on a DU-liberality-level board (except they don't ban the conservatives, they mock them) referring to the document fraud. Guess what subjects IMMEDIATELY got brought up!
-Bush sucks so it's justified (on topic, I guess)
-Bush is a fundamentalist Christian homophobe who opposes science and is a corporate puppet
-The Bible also has errors, so it must be a forgery by my reasoning (what the fuck is this guy on?)
-The Swifties are liars and tools of Bush (oh, and Karl Rove, because he's evil)
-Bush lied, people died
-The Clinton scandal wasn't about perjury, it was only sex
-Bush is a bigot
-The Swifties are controlled by Bush
-Fox News is biased, so that justifies ever other channel's bias, and also the forgery
-The conservatives think that liberals are all treasonous because they don't agree with Bush
-The Swifties are liars
-Conservatives are all stupid and have no understanding of economics, military or healthcare
-Bush sucks
-Did we mention that Bush controls the Swifties, and the Swifties lied, too?
And in about 50 replies, about ten relate to the forgeries.