Mark Steven Kirk is an American retired politician and attorney who served as a United States senator from Illinois from 2010 to 2017, and as the United States representative for Illinois's 10th congressional district from 2001 to 2010. A member of the Republican Party, Kirk describes himself as socially liberal and fiscally conservative. As of 2026, he is the last Republican to represent Illinois in the U.S. Senate.
- Occupation
- politician, military officer, lawyer, congressional staff
- Position held
- United States representative, United States representative, United States representative, United States representative
- Citizenship
- United States
- Born
- September 15, 1959
