It seems that, in Missouri, the natural way to stop an ObamaCare-mandated state health exchange is to insist it be put to a vote. (Under the Patient Protection and Affordable Care Act, states have until 2014 to establish state-based insurance exchanges that may be run by the state, the federal government or through a partnership of both.)
On Election Day the Show Me State passed Proposition E, prohibiting the governor or any state agency from establishing or operating state-based health insurance exchanges unless and until they are authorized either by the legislature or by popular vote. Proposition E allows taxpayers to sue any Missouri state worker or agency involved with any part of the exchange process not required by federal law.