The city and county of St. Louis filed a joint lawsuit against Missouri, seeking to block a new Second Amendment “sanctuary” law preventing local officials from enforcing federal gun control laws.

The suit, filed on Monday in Cole County Circuit Court, argued that the Second Amendment Preservation Act signed by Republican Gov. Mike Parson on June 14 violates the Constitution’s supremacy clause by trying to subvert federal law and will hinder law enforcement’s ability to deter crime.

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