H. R. Gross began his career in journalism after a stint in military service during World War I. He transitioned from print media to radio broadcasting, gaining a reputation for independent thought. Gross entered politics by running for Governor of Iowa and later served in the U.S. House of Representatives for over three decades, known for his steadfast attendance and principled stances.

H. R. Gross's political identity is marked by a unique blend of fiscal conservatism and ideological independence, often placing him at odds with both major parties. His legislative record reveals unexpected alliances, such as supporting civil rights measures while opposing others, and a staunch opposition to increased government spending and federal interventions. Gross's rhetorical style is equally distinctive, using poetic references and unconventional protests to make his points. His approach to policymaking suggests a deeply calculated strategy to balance regional interests with personal principles.