Wisconsin State Legislature Executive and Leadership Team

November, 2026

Leadership Overview

Wisconsin State Legislature has 5 executives leading key functions including legislative operations, administrative oversight, and constituent advocacy.

Committed to public service and democratic governance, Wisconsin State Legislature maintains the legislative branch of the state through rigorous policy development and representative action.

Leadership Roles at Wisconsin State Legislature

  • Chief of Staff - Peter Hienz
  • Chief of Staff & Office of Jodi Habush Sinykin Senator (D-Whitefish Bay) - Robert Abrahamian
  • Chief of Staff & Office of Angelito Tenorio Representative - Juliana Bennett
  • Chief of Staff & Rob Hutton Senator - Chris Rochester
  • Chief Administrative Officer - Allyssa Costello
  • Peter Hienz - Chief of Staff

    Peter Hienz, the Chief of Staff at Wisconsin State Legislature, directs high-level legislative operations and coordinates strategic policy initiatives. Hienz manages internal communications across the legislative branch, ensuring alignment between policy goals and administrative execution. By overseeing complex scheduling and legislative priorities, the Chief of Staff facilitates efficient workflows for the entire organization. Peter Hienz maintains rigorous standards for legislative documentation and procedural compliance, supporting the broader mission of the Wisconsin State Legislature. This role involves constant collaboration with various departments to streamline the legislative process and enhance public service delivery. Through meticulous oversight of daily operations, the Chief of Staff drives organizational stability and ensures that all legislative objectives meet the needs of the state. Hienz remains focused on optimizing internal resources to support the effective functioning of the legislative branch.

    Robert Abrahamian - Chief of Staff & Office of Jodi Habush Sinykin Senator (D-Whitefish Bay)

    Robert Abrahamian, the Chief of Staff & Office of Jodi Habush Sinykin Senator (D-Whitefish Bay) at Wisconsin State Legislature, manages constituent relations and legislative advocacy for the district. Abrahamian coordinates policy research and drafts critical legislation to address regional concerns within the state. By overseeing the daily operations of the office, the Chief of Staff & Office of Jodi Habush Sinykin Senator (D-Whitefish Bay) ensures that all legislative activities align with the specific needs of the constituency. Robert Abrahamian facilitates communication between the Senator and various stakeholders, driving effective public engagement and policy development. This leadership role involves managing complex legislative schedules and prioritizing key issues for the office. Through strategic planning and diligent advocacy, the Chief of Staff & Office of Jodi Habush Sinykin Senator (D-Whitefish Bay) supports the overall mission of the Wisconsin State Legislature by fostering responsive and transparent governance.

    Juliana Bennett - Chief of Staff & Office of Angelito Tenorio Representative

    Juliana Bennett, the Chief of Staff & Office of Angelito Tenorio Representative at Wisconsin State Legislature, directs legislative strategy and community outreach efforts. Bennett manages the representative's policy agenda, focusing on key issues that impact the district and the broader state. By overseeing the daily administrative functions of the office, the Chief of Staff & Office of Angelito Tenorio Representative ensures that all legislative goals receive proper attention and resources. Juliana Bennett facilitates collaboration with other legislative offices to advance policy initiatives and improve public service outcomes. This role involves analyzing complex legislative data and providing actionable insights to support the representative's decision-making process. Through proactive engagement and strategic planning, the Chief of Staff & Office of Angelito Tenorio Representative drives the mission of the Wisconsin State Legislature by ensuring that constituent voices remain central to the legislative process.

    Chris Rochester - Chief of Staff & Rob Hutton Senator

    Chris Rochester, the Chief of Staff & Rob Hutton Senator at Wisconsin State Legislature, oversees legislative policy development and strategic communications for the office. Rochester manages the legislative agenda, ensuring that all policy proposals align with the Senator's priorities and the broader goals of the Wisconsin State Legislature. By directing the daily operations of the office, the Chief of Staff & Rob Hutton Senator facilitates efficient legislative workflows and effective constituent engagement. Chris Rochester coordinates with other legislative leaders to advance key initiatives and address critical state issues. This leadership role involves managing complex policy research and providing strategic guidance to support the Senator's legislative objectives. Through diligent oversight and proactive management, the Chief of Staff & Rob Hutton Senator drives the mission of the Wisconsin State Legislature by fostering effective governance and ensuring that all legislative activities remain focused on the needs of the state.

    Allyssa Costello - Chief Administrative Officer

    Allyssa Costello, the Chief Administrative Officer at Wisconsin State Legislature, directs the internal infrastructure and operational efficiency of the legislative branch. Costello manages human resources, budget allocation, and facility operations to ensure that all legislative functions proceed without interruption. By overseeing the administrative systems that support the entire organization, the Chief Administrative Officer maintains the integrity and functionality of the Wisconsin State Legislature. Allyssa Costello implements strategic policies to optimize resource management and improve organizational performance across all departments. This role involves collaborating with other executive leaders to align administrative support with the legislative mission. Through rigorous oversight of internal processes and fiscal responsibility, the Chief Administrative Officer drives the long-term stability of the legislative branch. Costello remains focused on creating a robust administrative framework that enables representatives and staff to perform their duties effectively for the benefit of the state.

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    Frequently Asked Questions Regarding Wisconsin State Legislature Top Executives and Leadership Team

    Who leads Wisconsin State Legislature?
    Wisconsin State Legislature is led by Peter Hienz (Chief of Staff), along with executives such as Robert Abrahamian (Chief of Staff & Office of Jodi Habush Sinykin Senator (D-Whitefish Bay)) and Juliana Bennett (Chief of Staff & Office of Angelito Tenorio Representative).
    Who is part of Wisconsin State Legislature’s executive team?
    The executive team of Wisconsin State Legislature includes leaders such as Peter Hienz (Chief of Staff), Robert Abrahamian (Chief of Staff & Office of Jodi Habush Sinykin Senator (D-Whitefish Bay)), Juliana Bennett (Chief of Staff & Office of Angelito Tenorio Representative) and other senior executives.
    How many executives does Wisconsin State Legislature have?
    Wisconsin State Legislature has 5 executives leading key business areas.
    What roles are included in Wisconsin State Legislature’s leadership team?
    The leadership team of Wisconsin State Legislature includes roles such as Chief of Staff, Chief of Staff & Office of Jodi Habush Sinykin Senator (D-Whitefish Bay), Chief of Staff & Office of Angelito Tenorio Representative, Chief of Staff & Rob Hutton Senator, Chief Administrative Officer.