Congressman Dunn was first elected to the United States House of Representatives in 2016. He serves on the House Committee on Veterans’ Affairs and the House Committee on Energy and Commerce. He has been a vocal advocate for veterans and has worked to improve access to healthcare for rural communities and expand broadband internet access throughout his district.

Prior to his time in Congress, He served as an Army officer and a surgeon in the United States Army for over a decade, including serving as a combat surgeon during Operation Desert Storm. In 1990, Congressman Dunn returned to Florida and began practicing medicine in Panama City. He later founded his own surgical practice, the Panama City Surgery Center, which he operated for over 25 years.