Montana governor signs bill invalidating federal gun restrictions

• While supporters say the new measure protects the second amendment from harsher gun control laws, opponents say it "would make it difficult for local law enforcement to collaborate with federal authorities on issues beyond gun access when such collaboration is essential to protect public safety," AP writes.

Details: The law also prohibits state funds from being used to uphold federal gun restrictions.

• Any state employee, including law enforcement, cannot cooperate, communicate or collaborate with a federal agency whose primary purpose is to enforce federal bans on guns.

Worth noting: Arizona Gov. Doug Ducey (R) similarly signed a bill earlier this month that protects gun owners in the state from federal gun restrictions, per Fox News.