Sam Stewart earned a Bachelor of Laws from the University of Kansas and subsequently held various leadership roles in Montana politics. He served two terms as Governor, during which he introduced labor laws, sanctioned a fish and game law, and authorized a council of defense. Stewart also organized a state highway commission, passed a sedition act, and added two justices to the state supreme court. After leaving the governorship, he served in the Montana House of Representatives and was appointed to the Montana Supreme Court, where he remained until his death.

Sam Stewart's political career reveals an intriguing blend of progressive labor reforms with conservative legal measures, as evidenced by his introduction of labor laws juxtaposed with the passing of a sedition act. His tenure as Governor of Montana saw him authorize a council of defense and organize a state highway commission, showcasing a calculated approach to regional development. Stewart's appointment to the Montana Supreme Court after his political defeats underscores a commitment to the judiciary, despite electoral setbacks. His legislative record shows an unexpected convergence with opposing factions on environmental regulations, revealing a highly localized approach to policymaking.