On Aug. 7, 2018, Missouri residents voted by a 2 to 1 margin against Proposition A, which would have made Missouri a right-to-work state.

The ballot measure asked voters whether they wished to enact Senate Bill 19, which the state legislature passed and former Gov. Eric Greitens signed last year. If enacted, that bill would have prohibited “employers from requiring employees to join or refrain from joining a labor organization, requiring employees to pay any money to a labor organization, or requiring employees to pay any charity or third party the equivalent of money required to be paid by members of a labor organization.”

Before the law went into effect, labor groups successfully collected signatures to put the law’s future before voters in a statewide referendum, originally scheduled for November. The referendum was later moved to the August primary ballot.

The defeat of Proposition A was a triumph for unions, especially in light of the U.S. Supreme Court’s recent decision in Janus v. AFSCME, which held that nonunion members of public employers cannot be required to pay union fees.