The lengths to which some are going to excuse the IRS corruption (“the tea-party groups deserved extra scrutiny”), the AP monitoring (“national security”), Benghazi (“confusion” — or the Republicans did it by cutting back on funding for embassy security), the Sebelius shakedowns (no choice when the House tries to stop Obamacare) all evoke the old Nixonian cast. The only mystery as these scandals spread and expand in the weeks ahead will be who this time around will play the zealous Rabbi Baruch Korff, who hits the road to whip up the grass-roots base? Who will play Representative Charles Sandman, the die-hard congressional obstructionist? And who will play Al Haig, the final White House loyalist who juggles all the subpoenas?