States join lawsuit to overturn federal gun registration rules

Fifteen Republican-led states have backed a sweeping federal lawsuit that could dismantle much of the nearly century-old National Firearms Act. The lawsuit argues that Congress’s repeal of most taxes on certain regulated weapons stripped the government of its constitutional authority to require their registration.

The amended complaint, filed Friday in the United States District Court for the Northern District of Texas, expands a case brought by Gun Owners of America immediately after President Donald Trump signed the One Big Beautiful Bill Act into law on July 4.