The 7-2 decision, which overturned an opinion by a conservative appeals court, was a victory for Biden. But Trump could repeal the regulation.

Mar. 7, 2026 – 01:59 – The Supreme Court upheld a Biden-era rule classifying “ghost guns” as firearms under federal law.

Despite federal regulations forcing the country's largest ghost gun kit manufacturer out of business, parts needed to build untraceable firearms remain readily available online, according to an ...