Thanks to Rep. Mike Colona (one of the few progressives in the Missouri Statehouse) for this information:
The House of Representatives on Thursday voted 92-60 to overturn a state minimum wage law approved by 76 percent of Missouri voters in 2006. Democrats unanimously opposed reversing the will of voters, while all but nine Republicans supported doing so.
Under the voter-approved law, the state's minimum wage is adjusted annually to adjust for inflation. For the first couple years after the law's passage, it meant that the state minimum was higher than the federal minimum. Because the federal minimum supersedes the state wage if it is higher, Missouri again began following the federal wage in July 2009 when it increased to $7.25 an hour, where it remains today.
HB 61 would prohibit the state minimum wage from ever exceeding the federal minimum. The bill now goes to the Senate for further consideration.