The Benghazi affair is beginning to shape up as a bi-partisan scandal — making Trey Gowdy’s life doubly difficult, of course. But the former prosecutor has been doing a bang-up job with his select committee, demolishing the mantra that there is “nothing new” to be learned about Benghazi and building a sober, far-reaching inquiry. Without Gowdy, recall, there would be no Clinton secret server, no Sidney Blumenthal trail, no new emails, and no upcoming testimony from Mrs. Clinton and her inner circle . On the latter, Gowdy is holding firm, saying he will not schedule testimony until all relevant emails...