In a gut punch to Second Amendment defenders, the Supreme Court today upheld a Biden administration rule clamping down on "ghost guns," those untraceable firearms that patriots and hobbyists have long cherished as a symbol of American freedom.

With a 7-2 decision, the court greenlit a radical overreach by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), mandating serial numbers, background checks, and age verification for gun kits bought online.

Last year, a three-judge panel of the 5th U.S. Circuit Court of Appeals said a 2022 rule aimed at weapons that could be built from parts bought online without a background check exceeded the agency's authority.

All three judges on the panel were appointed by former President Donald Trump.

The rule redefined the legal meaning of "firearm," "frame," and "receiver" as written in the Gun Control Act of 1968.