History2010sUnited Stateshigh confidence

In June 2016, Democratic U.S. Senator Chris Murphy spoke on the Senate floor for about 15 hours in an attempt to advance gun control legislation.

Notes on verification

Confirmed by multiple independent, high-quality sources (CNN, NBC News, Washington Post, Wikipedia) and consistent with contemporaneous reporting and Murphy's own statements. [cascade flags: wikipedia_dropped_other_sources_exist | tier=silver indep_score=0.7 clusters=2 claim_tier=notable]

Sources