Jack M. Campbell holds an undergraduate degree and an LL.B from Washburn University. He served in the United States Marine Corps during World War II and subsequently established a legal practice in Albuquerque, New Mexico, while also working as an FBI agent. Campbell spent seven years in the New Mexico House of Representatives, culminating in his role as Speaker. He was elected governor in 1962 and re-elected in 1964, during which he called for a significant overhaul of the New Mexico Constitution, leading to the 1969 Constitutional Convention. Post-governorship, he served on the Atomic Safety and Licensing Board.

Jack M. Campbell's political identity is marked by an ideologically agile approach, particularly evident in his support for progressive mental health programs while simultaneously advocating for constitutional reforms that could potentially restrict civil liberties. His tenure as governor saw an unexpected convergence with opposing factions on environmental regulations, suggesting a highly localized strategy to protect regional industrial interests. Campbell's rhetorical style often framed issues through a lens of regional pragmatism, balancing progressive social policies with conservative fiscal measures. This juxtaposition reveals a nuanced political philosophy that invites deeper inquiry into his motivations and strategic calculations.