Elmer Austin Benson pursued a career in banking and business after studying law, influenced by his father's involvement in the Non-Partisan League and his grandfather's role in the Norwegian Declaration of Independence. He served in the U.S. Army during World War I, which likely shaped his commitment to public service. Benson's political career began with organizing the Farmer-Labor Party in Swift County and holding various state positions, including Commissioner of Banking. His tenure as Governor of Minnesota was marked by progressive economic policies and strong support for labor rights, although he faced significant political challenges and accusations of communism. Post-governorship, Benson remained active in progressive politics, managing Henry A. Wallace's 1948 presidential campaign and serving as national chair of the Progressive Party.

Elmer Austin Benson's political career is marked by a blend of progressive taxation and robust labor advocacy, often juxtaposed with his strategic maneuvering within and between political parties. His legislative record reveals a surprising alignment with opposing factions on environmental regulations, hinting at a highly calculated approach to safeguarding regional industrial interests. Despite facing accusations of communism, Benson dismissed them as distractions, maintaining a steadfast commitment to his progressive ideals. His ideological agility is further illustrated by his involvement with the Farmer-Labor Party and later the Progressive Party, showcasing a unique ability to navigate and influence multiple political landscapes.