Sperry doesn't have Clinton's red face in his face in the Rose Garden to put him in the news. Sperry's a good guy, God knows why he wrote this drool!
Most likely because he no longer works for a credible news organization (he was with IBD, if I recall), he's hungry for an angle, an "in," and Geragos saw that weakness and exploited it. Actually, I believe it goes back to before Geragos -- I think I first noticed that he was being used as a conduit for condit back in the good old days when Abbe Lowell was running Condit's defense.