History2010sUnited Stateshigh confidence

In 2017, Senate Republicans extended the nuclear option to eliminate the 60-vote threshold for Supreme Court justice nominations.

Notes on verification

Well-documented event confirmed by numerous independent, high-quality contemporaneous news sources including CBS, NBC, CNN, NPR, and PBS/AP. [tier=silver indep_score=0.688 clusters=6 claim_tier=notable | kind=empirical eligibility=high]

Sources