The National Rifle Association has joined in a lawsuit against the National Security Agency.
The gun owners lobby filed an amicus brief in a suit against the NSA surveillance program that collects phone records.
The NRA says the program essentially is developing a national gun registry, something that Congress has repeatedly rejected.
The group also warned the surveillance program violates Americans' constitutional right to free speech.
The American Civil Liberties Union filed the original suit and several news organizations have joined in.
"Americans from across the political spectrum value individual privacy," ACLU lawyer Jameel Jaffer told Reuters. "The philosophical roots may differ, but I think that is a widely shared American value."