Mexico originally filed the suit in 2021, arguing that U.S. gun companies were responsible for the weapons that fueled cartel violence.

The Supreme Court on Friday left in place a longstanding gun restriction in the District of Columbia that bans magazines that hold more than 10 rounds of ammunition, opting once again to avoid taking...

The justices turned away an appeal by four men who challenged the law of a lower court's ruling that upheld the Democratic-governed city's ban on virtually all ammunition-feeding devices holding more...