Updated September 19, 2026.
McConnell entered the Senate in 1985 and remained there through September 2026. He served as Republican whip, Republican leader, majority leader and minority leader.
1985
He began serving as Kentucky senator on January 3, 1985.
2007–2025
He led Senate Republicans for 18 years, including majority-leader service from 2015 to 2021.
2025–2026
John Thune succeeded him as Republican leader in January 2025. McConnell remained a senator and became chair of the Rules and Administration Committee.
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Posts by Senator Mitch McConnell
