Thomas Cusack served as a Representative from Illinois in the United States Congress from 1899 to 1901. A member of the Democratic Party, Thomas Cusack contributed to the legislative process during 1 term in office.

Thomas Cusack’s service in Congress occurred during a significant period in American history. As a member of the House of Representatives, Thomas Cusack participated in the democratic process and represented the interests of constituents, helping to shape the laws and policies that governed the nation.