James Hamilton Jr. began his career by studying law and practicing in Charleston, establishing a foundation in legal expertise. He transitioned into public service, gaining experience in state and local governance roles. Hamilton Jr. demonstrated leadership by organizing a militia and court proceedings to address a significant slave conspiracy, although his actions were controversial. He later served in the U.S. Congress and as Governor of South Carolina, where he played a role in the Nullification Crisis. Hamilton Jr. also contributed to the Republic of Texas by securing international recognition and commercial treaties.

James Hamilton Jr.'s political identity is marked by a complex blend of localism and economic conservatism, with a surprising commitment to stringent racial controls. His legislative record reveals an unexpected convergence with opposing factions on environmental regulations, showcasing a highly calculated approach to protecting regional industrial interests. Hamilton Jr.'s rhetorical style juxtaposes a fervent defense of states' rights with an equally staunch advocacy for strict racial hierarchies, creating an intriguing tension in his ideological positioning. His involvement in the Denmark Vesey slave conspiracy trial and subsequent lobbying for harsher restrictions on free blacks further complicate his stance on race relations.