This is long game stuff for the GOP. The Pubs are looking beyond just the next swing of the club, they’re looking at the next green. They don’t care what public opinion of Congress is today or tomorrow.
Destroy Obama’s legacy, get people to see him as a failure, he’s at the helm during a government shutdown, every debt limit increase is surrounded with drama during his presidency, his signature legislation is forever connected with a government shutdown. The Pubs couldn’t stop his re-election, they couldn’t stop healthcare reform, but they can still make him and the ACA look bad. Extremely bad, is their hope.
They want to run against Obama and the ACA the same way Obama ran against Bush and Iraq. They want people so fucking fed up with Obamacare, Obamacare, Obamacare that they are begging for relief. They don’t want any success associated with the ACA to make it out into the public sphere. They couldn’t turn Obama into the next Carter, so now they so, so, so very desperately want Obama to be the next W. Tarnished, covered in shit, low approval ratings, hated.
They already see themselves as losers. Their only hope is to drag Obama down to their level of public hatred so they can use his bloated corpse (metaphorically speaking, Mr. Secret Serviceman) to use as a ladder to climb out of the shitpit in 2016, and maybe even 2014.
Obama followed such an atrocious presidency that, in theory, anything afterward would look phenomenal. The Pubs couldn’t let that happen if they want to retake the WH anytime soon. Or the HoR (which they were successful at in 2010). Or the Senate (which they are hoping to capture in 2014).
They especially see healthcare reform as a nail in the coffin for the GOP because in their eyes, this creates a whole 'nother constituency that will fall in love with Democrats for generations: the un- and -under-insured. It’s also why they won’t touch immigration reform under Obama’s watch. They don’t want to lose Latinos forever either.
They’re basically grasping for their very existence, and see the only way they can survive is by damaging Obama and not letting Obamacare get popular.
Obama and every single Democrat in Washington need to unrelentingly tie this shutdown to Boehner. Not the republicans, not the Tea party, not Ted Cruz. Boehner. Beyond that, I don’t know what else they can do to keep from being dragged down. Hope for wild success in the implementation of the ACA, I suppose. Or at least take a page from the Pub PR playbook and mercilessly publicize the successes.