The president’s shake-up of his own governance can’t wait, as tradition often has it, until after the next election. The Tea Party is at the barricades. When Obama said yet again on Tuesday that he would be “happy to look at other ideas and approaches from either party,” you wanted to shout back, Enough already! His energy would be far better spent calling out in no uncertain terms what the other party’s “ideas and approaches” are. The more the Fox-Palin right has strengthened its hold on the G.O.P. during primary season, the sharper and more risky its ideology has become…

When Joe Barton, the ranking Republican on the House Energy and Commerce Committee, revived Rand Paul’s defense of BP last week by apologizing on camera to Hayward for the “tragedy” of the White House’s “$20 billion shakedown,” the G.O.P. establishment had to shut him down because he was revealing the party’s true loyalties, not because it disagreed with him. Barton was merely echoing Michele Bachmann, who labeled the $20 billion for gulf victims a “redistribution-of-wealth fund,” and the 100-plus other House members whose Republican Study Committee had labeled the $20 billion a “Chicago-style shakedown” only a day before Barton did.

These tribunes of the antigovernment right and their Tea Party auxiliaries are clamoring for a new revolution to “take back America” — after which, we now can see, they would hand over America to the likes of BP. Let Deepwater Horizon be ground zero for a 9/11 showdown over the role of government. There couldn’t be a riper moment for Obama, as a man once said, to bring it on.