Limbaugh Audience - Declining? Smarter?

[QUOTE=Steve MB]
Obviously, there is an inherent bias in the selection of questions. I could write a list of questions (e.g. “Which country was primarily responsible for helping Osama perpetrate the 9/11 attacks?”) that would make Limbaugh’s listeners look like absolute ignoramuses.
[/QUOTE]
How would you know until you asked?