Robert Bruce McCoy graduated from the University of Wisconsin Law School and was admitted to the bar. He spent nearly two decades as a Monroe County Court Judge and served as Mayor of Sparta. McCoy also had a distinguished military career, spanning the Spanish–American War, Villa Expedition, and World War I, culminating in his promotion to major general. He was pivotal in the establishment of training facilities for Artillery units and was awarded the Distinguished Service Medal and the French Croix de Guerre.

Robert Bruce McCoy's political identity is marked by a steadfast commitment to military preparedness and regional development. His strategic philosophy reveals a blend of local governance and national defense, as seen in his efforts to establish training facilities for Artillery units. Despite his unsuccessful bid for Governor, McCoy's legislative actions and military accolades highlight a unique convergence of local interests with broader national security concerns. His rhetorical style likely emphasized duty and service, drawing on his extensive military experience to frame public service as a continuation of his patriotic endeavors.