Congressional Republicans are debating whether to pass budget legislation that would cut off Obamacare funding. That could lead to a government shutdown, unless President Obama decided to sign off on a bill cutting off money for his signature legislative accomplishment (spoiler alert: This is unlikely!). So, let's make the relatively bulletproof assumption that the White House isn't on board with defunding Obamacare. The shutdown happens. And Obamacare implementation … well, it continues. That's according to a new Congressional Research Service report, requested by Sen. Tom Coburn (R-Okla.) and flagged by Post Politics' Rachel Weiner.