Marcus Sebastian Mason is Senior Partner at The Madison Group, LLC (TMG) with offices in Los Angeles and Washington, DC. He also manages the firm’s West Coast operation in California.

 Prior to joining TMG, he served as Amtrak’s Senior Director of Government Affairs, and interim Head of Office. He was responsible for advancing the company’s strategic business initiatives in the House of Representatives, United States Senate and more than three dozen states.

 Prior to his tenure at Amtrak, Marcus served as both Chief of Staff and Legislative Director for two California Members of Congress. During that time, he initiated and enacted several initiatives impacting the 37th Congressional District and the State of California. Marcus won his first congressional campaign at age twenty-one before beginning his tenure as Capitol Hill’s youngest Chief of Staff.

 He currently serves on the board of directors of the Congressional Black Caucus Political Action Committee (CBCPAC). He also serves on the Corporate Advisory Board for Pearl Homes, a modular affordable housing developer. Marcus is the Chairman of the Biden Campaign’s African American Leadership Finance Council

and serves as Senior Advisor to the Campaign’s Co-Chairman, Congressman Cedric Richmond.

Marcus has served on the board of directors of the Congressional Black Caucus Foundation (CBCF) as its Treasurer and chaired its Budget & Investment Committee. He also recently became the immediate past president of the African American lobbyists association, the Washington Government Relations Group (WGRG).

 Marcus is a published author who writes spy thrillers under the pen name Sebastian Cheney. He is married to Christina Mary and is the father of three, Taelor Chanel, Romelo and Grace Anne.

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