Peter Wehner: E.J. Dionne, Jr. has emerged as one of the most vocal critics of bipartisanship in the Age of Obama - '...We can all agree that intellectual fair-mindedness is a rare (and admirable) quality, and that double standards are common in politics, as well as in life. But it is not often that the double standards are this glaring, and even blinding, in a single person. Perhaps before Dionne writes his next column warning of the terrible dangers of bipartisanship and "nebulous cross-party comity," he can explain to the rest of us why he was making precisely the opposite argument when a Republican was in office. And perhaps his readers can see Dionne's columns for what they are: partisan advocacy pieces dressed up in whatever clothing suits the moment.'