John Thune

• Agriculture, Nutrition, and Forestry Committee
• Commodities, Derivatives, Risk Management, and Trade Subcommittee
• Conservation, Forestry, Natural Resources, and Biotechnology Subcommittee
• Livestock, Dairy, Poultry, and Food Safety Subcommittee
• Commerce, Science, and Transportation Committee
• Aviation, Space, and Innovation Subcommittee
• Consumer Protection, Technology, and Data Privacy Subcommittee
• Surface Transportation, Freight, Pipelines, and Safety Subcommittee
• Telecommunications and Media Subcommittee
• Finance Committee
• Health Care Subcommittee
• International Trade, Customs, and Global Competitiveness Subcommittee
• Taxation and IRS Oversight Subcommittee
• Intelligence (Select) CommitteeEx Officio

• Senate Republican ConferenceParty conferenceMajority Leader

• Jessica L. McBride — Deputy Chief of Staff
  jessica_mcbride@thune.senate.gov
• Adam R. Wek — Legislative Director
• Amy D. Barrera — Director of Scheduling
• Audrey Louise Beck — Legislative Assistant
• Ashlynne N. Beninga — Legislative Assistant
• Nathan T. Brecht — Legislative Correspondent
• Hannah Beth Bultena — Staff Assistant
• Sarah E. Cox — Legislative Correspondent
• Sophie C. Doeden — Constituent Services Representative
• Jesse C. Ewing — Constituent Service Representative
• James C. Ferenc — It Director
• Michael John Finan — Press Secretary
• Sarah A. Hansen — Immigration Specialist
• Mark A. Haugen — West River Director
• Nicole X. Herman — Legislative Aide
• Bruce A. Jones — Constituent Services Representative
• Jon Lauck — Senior Advisor,counsel
• Molly K. Lienemann — Staff Assistant
• Robin L. Long — State Scheduler
• Kate A. Lundberg — Operations Assistant
• David F. Marron — Counsel
• Elizabeth A. McCardle — Staff Assistant
• Cathy Jo Mendel — Casework Director
• Angela M. Merkle — Senior Advisor
• Patrick W. Minihan — Legislative Correspondent
• Jake A. Netterville — Special Assistant
• Christiana Marie Nulty — Health Policy Advisor
  christiana_reasor@thune.senate.gov
• Benjamin J. Ready — Southeast Area Director
• Phillip Allen Rokus — Constituent Services Representative
• Jacob P. Tarrell — Constituent Services Representative
• Christen L. Thompson — Administrative Director
• Teresa A. Thompson — Constituent Service Representative
• Judy L. Vrchota — Ne Regional Director

Data as of Oct 2025 – Mar 2026 · Report of the Secretary of the Senate

Emails from published public contact lists

• Aberdeen605-225-8823
  205 6th Avenue SE · Suite 202 · Aberdeen, SD, 57401
• Rapid City605-348-7551
  246 Founders Park Dr. · Suite 102 · Rapid City, SD, 57701
• Sioux Falls605-334-9596
  2401 West Trevi Place · Suite 200 · Sioux Falls, SD, 57108

Data from congress-legislators