Heidi Heitkamp

Mary Kathryn "Heidi" Heitkamp is an American politician and lawyer who served as a United States senator from North Dakota from 2013 to 2019. A member of the North Dakota Democratic–Nonpartisan League Party, her 2012 victory made her the first woman elected to Congress from North Dakota, where she served as the 20th tax commissioner from 1986 to 1992 and as the 28th state attorney general from 1992 to 2000. As of 2026, she is the last Democrat to have won or held statewide office in North Dakota.