Jimmy Peacock

Principal
Washington, DC

Jimmy Peacock

Principal
Washington, DC

Quick Facts

  • Most recently served as Chief of Staff to Sen. Eric Schmitt (R-MO)
  • Former Campaign Manager and Chief of Staff to Rep. Ashley Hinson (R-IA)
  • Former Special Assistant to then Sen. Marco Rubio

Jimmy's Bio

Jimmy Peacock joined Cornerstone as a Principal on our federal government relations team in June 2025. He has significant experience in the legislative branch, with over a decade of experience at the highest levels of Republican politics – including key roles with Sen. Eric Schmitt (R-MO), Rep. Ashley Hinson (R-IA) and Sen. Marco Rubio (R-FL). Jimmy brings a deep understanding of legislative strategy, political communications, stakeholder engagement and fundraising to the firm.

Prior to joining Cornerstone, Jimmy served as Chief of Staff to Sen. Schmitt, leading the Senator’s policy agenda, communications and constituent services, while managing nearly 40 staffers across multiple offices. Prior to that, Jimmy acted as Chief of Staff to Rep. Hinson, where he set up the Congresswoman’s office infrastructure and guided strategic initiatives that established her as a leading voice among House Republicans. His ability to build effective teams and networks has been a hallmark of his career.

Jimmy started his career on Capitol Hill working as a Special Assistant to Sen. Rubio, managing on-the-ground operations, ensuring successful events, facilitating stakeholder engagement, arranging communications and coordinating across various departments on behalf of the Senator.

At the start of his career, Jimmy played pivotal roles in Republican campaign operations. He managed Congresswoman Hinson’s successful bid to defeat an incumbent in 2020, orchestrating a fundraising operation that broke state records and helped solidify her place in Congress. His ability to execute high-stakes political strategy extends back to his work for Sen. Rubio and Virginia gubernatorial candidate Ed Gillespie, where he ensured seamless engagement with stakeholders and maximized the effectiveness of conservative campaign efforts.

Jimmy received his bachelor’s degree in political science and government from Furman University.

Services

Expertise

Education

BA, Furman University