Back in 1993, a Washington Post reporter asked me which Clinton was smarter, Bill or Hillary. As a magazine journalist long residing in Arkansas, I'd never covered state government and would have described the president and first lady as friendly acquaintances, nothing more.We had a saying in the Central Arkansas Beagle Club that you can't train no dog that's smarter than you. Since both Clintons clearly topped me in the IQ department, I had no way to judge their relative brainpower.Now something called the Washington Free Beacon has unearthed nuggets from the collected papers of the late Diane Blair, the accomplished University of Arkansas professor who was Hillary's dearest friend and confidante.