Attorney General Sessions, we now know, is a bad hombre. If he is a true Southerner and has any sense of honor, recusing himself from investigations of Russian ties with the Trump campaign is not enough. He must self-deport pronto. Senator Al Franken did not force then-Senator Sessions to be a lying liar by asking him questions about Russia. Sessions’ false statements are all on him, and to say otherwise buys into the kind of permissive relativism that Mr. Sessions has attacked for many years. The happiness and perhaps even glee of Democrats here is nevertheless not relevant to the problem: if an Attorney General is not believable as the champion of impartial justice, the jig is up.