Mr. Halvorson has worked as an organizer and social worker. In 2004 he founded Citizens for Election Integrity Minnesota (CEIMN), a statewide, non-partisan organization that advocates for accurate, transparent and verifiable elections. He served as the executive director of CEIMN for seven years and now is an active board member. Mr. Halvorson has served on several non-profit boards and has helped to launch two other non-profits.