...Barr warmed against “a tit for tat exercise,” politicizing justice or “lower[ing] the standards” just to punish Obama for doing the same. “Not every abuse of power, no matter how outrageous, is necessarily a federal crime,” he cautioned. Still, if the goal is to restore public confidence in the justice system, the only way is to wipe the slate clean. And the only way to do that would be for Trump to pardon Obama and Biden, preemptively, for the sake of national unity. It would, of course, drive Obama, Biden, the Democrats, and the media crazy. Pardoning Obama and Biden...