Retirements among Senate Democrats are paving the way for younger and fresher successors who are more vocal about abolishing the filibuster.
Efforts to create policy carveouts for the 60-vote threshold under Democratic majorities fell short thanks to centrist holdouts.
But Senate hopefuls in several states have a stronger desire to repeal the filibuster in its entirety.
These prospective successors are emerging in key races, signaling a potential shift in party strategy on procedural rules.
If successful, such a change could reshape the legislative landscape, allowing major Democratic priorities to pass with a simple majority.