Katy B. Sen

Lobbyist Principal

St. Paul




Katy Sen is a lobbyist out of the firm’s Government Relations Division. She brings a decade of legislative and executive branch experience in the areas of tax policy, bonding, transportation and state and local government issues.  Clients know her as a skilled relationship builder with strong ties to key policy makers and demonstrated success in getting legislation passed into law.

Prior to joining Messerli Kramer, Katy served as Deputy Chief of Staff for Governor Mark Dayton, where she oversaw development of the Governor’s biennial and capital budgets; provided strategic and policy advice; and coordinated with federal representatives in Washington on a variety of issues. Katy also served as the Director of Research in the House of Representatives DFL Caucus,  providing legislative guidance on issues ranging from transportation, economic development, and health and human services to energy, K-12 education, and higher education for the state.

Katy holds a Master’s degree in Public Policy from Harvard University’s John F. Kennedy School of Government.  Outside of the Messerli Kramer office, Katy enjoys spending time with her husband and two children.

Representative Experience
  • Represented the City of Bloomington in securing $8.75 million for the Mall of America Transit Station.

  • Represented a non-profit community health center in securing $2.2 million in funding for capital improvements.

  • Co-led lobbying team that successfully passed “Biosimilars” prescription drug legislation to help reduce prescription drug costs.

  • Represented a diverse group of stakeholders in securing funding to help victims of sex trafficking.

  • Represented a suburban city in securing $1 million for improvements to highly utilized local road.

  • Represented a major Minnesota sports team on tax and regulatory issues at the State Capitol.

Professional & Community


  • Minnesota Government Relations Counsel, Board Member

Community Involvement

  • Family Partnership, Minneapolis, MN, Volunteer

  • Messerli Kramer Foundation, Board Member

Publications & Presentations


  • Panelist, Minnesota Chamber of Commerce Women in Business: The Power of the Woman’s Vote, September 2, 2020
  • Panelist, Medical Alley Association Political Action Committee Election Preview, October 14th, 2020
  • Panelist, TurnAround Management Association Post-Election Analysis,  December 2, 2020
  • Key-Note Speaker, Safe Passage for Children of Minnesota Session Preview, January 2020