United States Senate Executive and Leadership Team

July, 2026

Leadership Overview

United States Senate has 10 executives leading key functions including strategy, operations, legislative affairs, and technology.

Dedicated to representing state interests and shaping national policy, United States Senate functions as a cornerstone of the federal government, driving legislative progress and ensuring balanced representation in the United States Congress.

Leadership Roles at United States Senate

  • Chief Executive Officer - Windol Jenkins
  • Chief of Staff - Darin Miller
  • Deputy Chief of Staff & Director, Legislative - Jed D'Ercole
  • Deputy Chief of Staff - Jennifer MacLellan
  • Deputy Chief of Staff - Kim Barnes
  • Deputy Chief of Staff & Tammy Duckworth Senator - Kelsey Becker
  • Deputy Chief of Staff & Director, State - Carl Mica
  • Deputy Chief of Staff, Operations - Aliyah Chance
  • Deputy Chief Information Officer - Jt Klipfer
  • Deputy Chief of Staff - Sarah Seitz
  • Windol Jenkins - Chief Executive Officer

    Windol Jenkins, the Chief Executive Officer at United States Senate, directs the overarching strategic vision and operational framework for the legislative body. This executive leadership role involves guiding the institution's engagement with national policy development and ensuring alignment with constitutional mandates. Jenkins oversees the coordination of key administrative functions that support the Senate's legislative duties, focusing on enhancing institutional efficiency and effectiveness. The Chief Executive Officer's responsibilities extend to fostering collaborative relationships with other governmental branches and stakeholders, thereby reinforcing the Senate's position within the federal government. By driving strategic initiatives, Windol Jenkins ensures the Senate effectively fulfills its role in the national legislative process, impacting policy outcomes across the United States.

    Darin Miller - Chief of Staff

    Darin Miller, the Chief of Staff at United States Senate, manages the day-to-day administrative operations and strategic implementation of the legislative agenda. This role involves coordinating the efforts of various departments to ensure seamless execution of the Senate's functions. Miller oversees the operational flow, ensuring that legislative priorities are effectively translated into actionable plans. The Chief of Staff works closely with other senior leaders to streamline processes and enhance organizational performance. By directing administrative resources and personnel, Darin Miller supports the Chief Executive Officer's vision and ensures the efficient functioning of the Senate's complex structure, contributing directly to its legislative output and governmental impact.

    Jed D'Ercole - Deputy Chief of Staff & Director, Legislative

    Jed D'Ercole, the Deputy Chief of Staff & Director, Legislative at United States Senate, spearheads the legislative strategy and policy development initiatives. This executive directs the analysis of proposed legislation, ensuring it aligns with the Senate's objectives and constitutional framework. D'Ercole oversees the legislative affairs team, guiding research, drafting, and debate preparation for senators. The Director, Legislative role involves close collaboration with committee chairs and members to advance key policy objectives across the United States. By managing the intricate legislative process, Jed D'Ercole ensures the effective progression of bills and resolutions, significantly influencing the nation's legal and policy landscape.

    Jennifer MacLellan - Deputy Chief of Staff

    Jennifer MacLellan, the Deputy Chief of Staff at United States Senate, focuses on enhancing the operational efficiency and strategic coordination across various Senate departments. This leadership position involves overseeing critical administrative functions that support the legislative process and ensure smooth organizational workflow. MacLellan directs initiatives aimed at improving internal communication and resource allocation, thereby bolstering the Senate's capacity to address national challenges. The Deputy Chief of Staff plays a vital part in implementing policies that promote effective governance and institutional integrity. Through strategic oversight, Jennifer MacLellan contributes to the Senate's ability to execute its constitutional duties and serve the interests of the United States.

    Kim Barnes - Deputy Chief of Staff

    Kim Barnes, the Deputy Chief of Staff at United States Senate, drives key initiatives related to intergovernmental affairs and external stakeholder engagement. This executive role involves cultivating relationships with state governments, federal agencies, and other public entities to foster collaboration and advance shared objectives. Barnes oversees strategies designed to enhance the Senate's outreach and communication efforts, ensuring its policies resonate across diverse constituencies within the United States. The Deputy Chief of Staff's responsibilities include managing critical partnerships that support the Senate's legislative mandate. By leading these engagement efforts, Kim Barnes strengthens the Senate's influence and effectiveness in the national policy arena.

    Kelsey Becker - Deputy Chief of Staff & Tammy Duckworth Senator

    Kelsey Becker, the Deputy Chief of Staff & Tammy Duckworth Senator at United States Senate, manages critical operational aspects and provides strategic support for Senator Duckworth's legislative agenda. This dual role involves overseeing the Senator's office operations while also contributing to broader Senate-wide strategic initiatives. Becker directs the implementation of policies and programs designed to advance the Senator's policy priorities and constituent services across Illinois and the United States. The Deputy Chief of Staff's responsibilities include ensuring effective coordination between the Senator's legislative team and administrative support functions. By driving operational excellence, Kelsey Becker ensures the Senator's office effectively serves its constituents and contributes to the Senate's legislative achievements.

    Carl Mica - Deputy Chief of Staff & Director, State

    Carl Mica, the Deputy Chief of Staff & Director, State at United States Senate, leads initiatives focused on state-level engagement and inter-state policy coordination. This executive role involves developing strategies to strengthen the Senate's connection with state governments and regional bodies across the United States. Mica oversees the analysis of state-specific issues and their impact on national legislation, ensuring diverse state perspectives inform policy debates. The Director, State position requires fostering collaborative frameworks that facilitate the exchange of best practices and policy solutions between federal and state levels. Through dedicated state-focused leadership, Carl Mica enhances the Senate's ability to address the varied needs of all American states.

    Aliyah Chance - Deputy Chief of Staff, Operations

    Aliyah Chance, the Deputy Chief of Staff, Operations at United States Senate, directs the execution of critical operational strategies and administrative functions. This executive role focuses on optimizing the day-to-day activities that support the Senate's legislative mandate and governmental responsibilities. Chance oversees the management of resources, personnel, and logistical frameworks to ensure maximum efficiency and effectiveness across all operational units. The Deputy Chief of Staff, Operations is instrumental in implementing process improvements and ensuring compliance with governmental regulations. By driving operational excellence, Aliyah Chance ensures the seamless functioning of the Senate, directly contributing to its capacity to enact policy and govern effectively within the United States.

    Jt Klipfer - Deputy Chief Information Officer

    Jt Klipfer, the Deputy Chief Information Officer at United States Senate, leads the strategic direction and implementation of information technology infrastructure and services. This executive role involves overseeing the development and maintenance of secure, reliable, and advanced technological systems that support the Senate's legislative and operational needs across the United States. Klipfer directs the IT department's efforts in cybersecurity, data management, and digital innovation, ensuring the protection of sensitive information and the enhancement of technological capabilities. The Deputy Chief Information Officer plays a crucial part in modernizing the Senate's technological landscape. By driving technological advancements, Jt Klipfer ensures the Senate remains equipped with the robust digital tools necessary for effective governance and legislative action.

    Sarah Seitz - Deputy Chief of Staff

    Sarah Seitz, the Deputy Chief of Staff at United States Senate, focuses on enhancing strategic communication and public engagement initiatives. This executive role involves developing and executing comprehensive communication plans that effectively convey the Senate's legislative activities and policy positions to the public and media across the United States. Seitz oversees the coordination of messaging, press relations, and digital outreach efforts, ensuring clarity and consistency in public discourse. The Deputy Chief of Staff plays a key part in shaping the narrative surrounding the Senate's work and fostering transparency. By leading these critical communication functions, Sarah Seitz strengthens public understanding and trust in the legislative process.

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    Frequently Asked Questions Regarding United States Senate Top Executives and Leadership Team

    Who leads United States Senate?
    United States Senate is led by Windol Jenkins (Chief Executive Officer), along with executives such as Darin Miller (Chief of Staff) and Jed D'Ercole (Deputy Chief of Staff & Director, Legislative).
    Who is part of United States Senate’s executive team?
    The executive team of United States Senate includes leaders such as Windol Jenkins (Chief Executive Officer), Darin Miller (Chief of Staff), Jed D'Ercole (Deputy Chief of Staff & Director, Legislative) and other senior executives.
    How many executives does United States Senate have?
    United States Senate has 10 executives leading key business areas.
    What roles are included in United States Senate’s leadership team?
    The leadership team of United States Senate includes roles such as Chief Executive Officer, Chief of Staff, Deputy Chief of Staff & Director, Legislative, Deputy Chief of Staff, Deputy Chief of Staff.