Former Deputy Attorney General Rod Rosenstein is a master of prevarication and deflection. He holds an M.S. in BS and a Ph.D. in vacuous excuses. Hes a professor emeritus of duplicity and deception. As a prodigious suck-up, hes the Eddie Haskell of lawyers. We can expect Rosensteins skill set to be on full display Wednesday when he finally and belatedly appears before the Senate Judiciary Committee as its first witness in an investigation into the origins and evolution of the fallacious Trump-Russia collusion probe.