Koch group backs Eric Schmitt in Missouri Senate race

Eric Schmitt, a Republican candidate for Senate in Missouri, has picked up the endorsement of Americans for Prosperity Action, a super PAC under the Koch umbrella of political and policy groups.

Schmitt, the Missouri attorney general, is locked in a competitive GOP primary with former Gov. Eric Greitens; Reps. Vicky Hartzler and Billy Long; and others. Americans for Prosperity Action, with its resources and focus on grassroots organizing and voter turnout, could provide a critical boost to Schmitt if the primary campaign remains close and ends in a photo-finish. The group operates under the umbrella of groups supported, in part, by Charles Koch.