Within America’s generally insane aversion to national gun laws is one glimmer of sanity: Fully automatic firearms — machine guns — are kept almost entirely out of civilian hands by federal statute.

The court’s decision has the potential to undercut President Biden’s efforts to restrict other gun accessories that enable semiautomatic rifles to fire at speeds rivaling those of machine guns. By ...

WASHINGTON — The Supreme Court on Friday struck down a Trump-era ban on bump stocks, a rapid-fire gun accessory that was used in the deadliest mass shooting in modern U.S. history. The high court's ...