I know the old “11th Commandment” notion has been observed mostly in the breach, but McCain and Giuliani have decided to abandon any pretense to collegiality.  If McCain keeps hitting Giuliani on his criminal associates (there’s a phrase that usually doesn’t help candidates), they could wind up badly damaging each other before the voting begins. 

Also, this exchange will hardly help the GOP improve its image after all of the many problems with corruption of House members in recent years.

Via Noam Scheiber