sentences:  In 2017, he took a position as senior policy advisor to the Secretary at the U.S. Department of Labor in Washington, D.C.In 1996, as policy director for then Arkansas governor Mike Huckabee, Greenberg was named to the "Arkansas Business" "40 under 40" list of leaders in business and government.He has previously taught at the Arkansas Governor's School and the University of Arkansas at Little Rock's W.H.