Nothing like a once-in-a-generation political upset to shake up incumbents, right? Two developments demonstrate that despite White House denial, the rest of the political establishment is taking stock and making adjustments.

On the defection-from-ObamaCare front, Sen. Dianne Feinstein is the latest voice of sanity to pipe up. ABC News reports:

“I can tell you the situation has changed dramatically. And I think it’s a sweep across the country and I think that the (White House Economic Adviser) Larry Summers’s of the world have to see it, the administration has to see it and we have to see it. And therefore everything is jobs and the economy and education. People are worried about education,” she said.

“You see anger. People are worried. And when they’re worried they don’t want to take on a broad new responsibility,” like health care reform, she said.

Meanwhile, Republicans are assessing their opportunities and will put new pressure on incumbents who previously didn’t consider themselves vulnerable. Evan Bayh has had the luxury to vote with his liberal leadership while talking like a fiscal conservative back home. That may end. Hotline reports:

In the wake of winning MA, GOPers are looking to put 1 more state in play if they can convince House GOP Conference chair Mike Pence to run against Sen. Evan Bayh (R-IN). … The NRSC has polled IN, and their survey shows Pence in a competitive position, though he trails Bayh in initial matchups.

(I’m betting that polling will shift post-Brown as voters realize there are options to the status quo.)

Now maybe Feinstein can be sweet-talked by the White House into continuing on the ObamaCare jag. Maybe Bayh isn’t concerned about his re-election. But I doubt it. These are mature politicians who can read the election returns for themselves. The White House will have a tough time convincing them to pretend all is well and the only problem has been insufficient speed in passing a grossly unpopular health-care bill.