Chuck Grassley

• Agriculture, Nutrition, and Forestry Committee
• Commodities, Derivatives, Risk Management, and Trade Subcommittee
• Food and Nutrition, Specialty Crops, Organics, and Research Subcommittee
• Rural Development, Energy, and Credit Subcommittee
• Budget Committee
• Finance Committee
• International Trade, Customs, and Global Competitiveness Subcommittee
• Social Security, Pensions, and Family Policy SubcommitteeChair
• Taxation and IRS Oversight Subcommittee
• Joint Committee on Taxation
• Judiciary CommitteeChair
• United States Senate Caucus on International Narcotics Control

• Senate Republican ConferenceParty conferencePresident Pro Tempore

• Nicholas W. Abusada — Legislative Correspondent
• Denise Andersen — Constituent Services Specialist
• David J. Bader — Press Secretary
• Jonathan D. Bladt — Regional Director
• Jacob I. Bossman — Regional Director
• Kyle Dean Cottrill — Constituent Services Specialist
• Sophia C. Damalas — Legislative Correspondent
• Amy E. Daniel — Archival Assistant
• Christine D. B. Downey — Legislative Correspondent
• Lauren K. Edwards — Constituent Service Representative
• Rochelle A. Fuller — Regional Director
• McKayla M. Guajardo — Staff Assistant
• Georgie A. Hilby — Legislative Correspondent
• Nicholas A. Hinkey — Correspondence Coordinator/System Administrator
• Mitchell David Ireland — Constituent Services Specialist
• Chloe Helena Kolakowski — Assistant Press Secretary
• Sherry Joy Kuntz — Senior Advisor
• Chase L. Marzen — Constituent Services Specialist
• Benjamin J. A. Mays — Legislative Correspondent
• Charles H. Murphy — Investigator
• Harrison J. Murray — Constituent Services Specialist
• Brooks C. Newby — Legislative Correspondent
• Andrew J. Reed — Legislative Correspondent
• Justus S. Rude — Staff Assistant
• Mimi A. Sanford — Constituent Services Director - Immigration Coordinator
• Noah A. Schrad — Regional Director
• Dickey Joe Sievers — Interim Regional Director
• Tianna Lee Torrejon — Digital Director
• Penny Vacek — Regional Director
• Lane M. Wiklund — Staff Assistant
• Ryan Lester Wiskerchen — Constituent Services Specialist

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

• Cedar Rapids319-363-6832
  111 7th Avenue SE, Box 13 · Suite 6800 · Cedar Rapids, IA, 52401
• Council Bluffs712-322-7103
  2146 27th Avenue · Suite 550 · Council Bluffs, IA, 51501
• Davenport563-322-4331
  201 W. 2nd St. · Suite 720 · Davenport, IA, 52801
• Des Moines515-288-1145
  210 Walnut St. · 721 · Federal Building · Des Moines, IA, 50309
• Sioux City712-233-1860
  320 6th St. · 120 · Federal Building · Sioux City, IA, 51101
• Waterloo319-232-6657
  531 Commercial St. · 210 · Waterloo Building · Waterloo, IA, 50701

Data from congress-legislators