Preliminary Research

I'm conducting a study based partially on the theory I outlined in the post below. My research has shown some interesting results so far.

If you search Google for "Liberals are unpatriotic," the vast majority of results are either conservatives claiming that they don't think liberals are unpatriotic or liberals trying to prove that they're patriotic. There are virtually no examples of liberals actually being called unpatriotic, aside from the occasional reference to Ann Coulter (and I've already expressed my feelings about her).

So, when exactly were all liberals accused of being unpatriotic? Did I miss it?

More research to come as soon as I figure out what my theory is supposed to prove.

UPDATE
Searching for "Democrats are unpatriotic" turns up a few accusations, but strangely enough, none come from the government, and it's mostly from personal web pages.

Where/when did this meme originate, anyway?