Interesting. New April ratings data released today confirm my claim about Beck's audience decline:

Interestingly, for the first time since he debuted on Fox News, Glenn Beck did not grow year-over-year: in fact, his show was down 7% in total viewers and 6% in the demo.

Think about that: Beck's ratings are down from April of 2009, from before the emergence of the Tea Party movement. Meaning, the Tea Partiers haven't boosted Beck's audience at all.

Ouch.