Kirk Cox graduated from Colonial Heights High School and holds a Bachelor of Science in Political Science and Social Science from James Madison University, along with an Associate of Science in Life Science from Richard Bland College. He taught government at Manchester High School until retiring in 2012. Cox has spent a significant portion of his career in the House of Delegates, where he championed legislation establishing the Online Virginia Network. He served as Speaker of the House and played a role in passing significant bills, including one to lift the age cap for autism coverage. Cox has also been involved in debates over gun control and redistricting.

Kirk Cox's political identity is marked by a blend of traditional conservatism and innovative policy proposals. His championing of the Online Virginia Network showcases an unexpected progressive streak in education policy, while his stance on closing a gun control special session without action reveals a staunchly conservative approach to Second Amendment rights. Cox's handling of racial gerrymandering allegations further complicates his ideological positioning, as he acknowledged gerrymandering while denying racial motivations. His rhetorical style often aligns with populist sentiments, as seen in his gubernatorial campaign criticisms of Governor Ralph Northam and his sympathy for election fraud claims.