State Lawmakers have failed to override a veto of a bill nullifying some Federal gun control laws.
On Wednesday night, the Senate came up one vote short.
The legislation had declared that any Federal policies that "infringe on the people's right to keep and bear arms" would be invalid in Missouri. It had cleared the house earlier with the minimum 109 votes needed to override the Governor.
The bill would have allowed prosecutors to bring criminal charges against Federal Authorities who attempted to enforce all Federal gun control laws, or against anyone who published the identity of a gun owner.
Governor Jay Nixon claimed the bill would have violated the U.S. Constitution's guarantee of free speech and its supremacy clause that gives precedence to federal laws over conflicting state ones.