That's what I thought, but I guess it's in dispute. Congressman Billybob corrected me in comment #50, above.
You can also read about it on Snopes.
A Google book search shows that it's been cited in dozens of published texts (going back to the 1950s, according to one). Inasmuch as many of these are textbooks in polysci, econ, business, law, etc., I don't feel too bad getting snookered by it. But I'll definitely try never to use it again!
*Sigh*...Can't wait until everything ever published is available online. Then we could track down something like this real fast.
Still a good quote.