A lawsuit is challenging Missouri Gov. Jay Nixon's order that the state accept jointly filed tax returns from same-sex couples legally married in other states.
Nixon said the directive applies to tax filing status and doesn't authorize same-sex marriage. The Missouri Constitution states only marriages between a man and a woman are valid in the state.
The lawsuit asks Nixon's order be declared unconstitutional. It was filed by officials from the Missouri Baptist Convention Christian Life Commission and the Missouri Family Policy Council.