John Thune Senate Race 2025. Washington (ap) — new senate majority leader john thune is kicking off the new session with a promise to preserve the filibuster, saying in his first floor speech as leader. John thune as the next senate majority leader, completing a momentous shift in their leadership that.

After 18 years of mitch mcconnell, senate republicans officially have a new top dog: John thune of south dakota used his first few minutes of floor time to make a commitment to defend the filibuster.