Commissioner Miller has served the State of Michigan at various state and local levels. In 1980, she was elected Harrison Township Supervisor, becoming the youngest person and first woman in the township’s history to hold the post. In 1992, she was elected Macomb County Treasurer, becoming the first Republican to win a countywide office in Macomb County in more than 60 years, as well as the first woman to hold the position. In 1994, she was elected Michigan’s 40thSecretary of State, defeating a 24-year incumbent to become the first woman to ever hold the office and the first woman to ever win a partisan statewide office in her own right. After two successful terms as Michigan’s Secretary of State, she was elected to the House of Representatives in 2002. In Congress, Representative Miller served as the Chairman of the Committee on House Administration. She also served as the Vice Chair of the House Committee on Homeland Security and as the Chairman of the Subcommittee on Border and Maritime Security. She was also a member of the Committee on Transportation and Infrastructure.
In 2016, she become Macomb County’s 11thPublic Works Commissioner
, and the first woman to hold the post. (Prior to 1976, the position was known as Drain Commissioner.)