It’s been one of those mornings in DC where a frenzy of activity may produce big developments or absolutely nothing at all.

Here are some midday update:

* Carney says Obama would sign “clean” short-term debt limit extension without demanding reopening of government.

* But nobody knows whether House proposal will be “clean” or will try to sneak in conditions.

* Dow up over 200 points on news of possible debt limit extension.

* Erick Erickson goes from predicting total GOP cave to celebrating partial victory since government shutdown would be back in the spotlight if debt limit extended.

* As distraction from the madness, you could read Peter Baker’s long insider account of George W. Bush’s decision not to pardon Scooter Libby and its impact of W.’s relationship with Dick Cheney.

And in non-political news:

* Robin Thicke disclaims responsibility for Mylie Cyrus’ antics at VMA, calls himself the “twerkee.”

As we take a lunch break, here’s more music about corruption: Phil Ochs’ assessment of Spiro Agnew’s boss: “Here’s to the State of Richard Nixon,” a variation on Ochs’ better-known “Here’s to the State of Mississippi.”

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Ed Kilgore is a political columnist for New York and managing editor at the Democratic Strategist website. He was a contributing writer at the Washington Monthly from January 2012 until November 2015, and was the principal contributor to the Political Animal blog.