- Allison Dreith (NARAL)
- Jeanne Kirkton
- Becky Morgan (Moms Demand Action)
- National Women’s Political Caucus — St. Louis
- Moms Demand Action for America Gun Sense Candidate
- NARAL Pro-Choice Missouri
- Missouri State Teachers Association
- Missouri NEA
- South County Labor Club COPE
- Better Schools for Missouri, comprised of
- Missouri Association of School Administrators
- Missouri Association of Elementary School Principals
- Missouri Association of Secondary School Principals
- Missouri Association of School Business Officials
- Professional Firefighters of Central St. Louis County
- UAW Midwest State CAP Council
- Missouri State UAW PAC
- Service Employees International Union (SEIU)
- St. Louis-Kansas City Carpenters Regional Council
- Safer Families for Missouri
- United Transportation Union
- IATSE St. Louis Theatrical Brotherhood Local 6
- IUPAT
- Gas Worker Local 5-6
- Heat & Frost Insulators & Allied Workers Local No. 1
- I.U.O.E. Local 513
- IBEW Local 1
- United Transportation Union