The whole thing could be shut down now by the supposedly led Republican House of Representatives. The Republicans could have left out of their budget all the funny funding business old Nanny the RED Pewlouise planted in the legislation. But a Republican Boehner said he was not going to break one of Nancy's rules... We have to watch very carefully what politicians say and then who it is they get their political funding from before we can believe what they claim.
Maybe you ought to read this: http://blog.heritage.org/2011/03/09/defunding-obamacare-istook-testifies-in-the-house/