The Trump administration is undertaking the broadest firearm deregulation in years, a sweeping rollback that would let Americans ship handguns in the mail, gut Biden-era background check rules and make it harder to yank a gun dealer's license. Why it matters: The effect critics fear is more guns moving with less federal scrutiny under the proposed dismantling of a 1927 criminal statute and dozens of newer rules, including President Biden's effort to close the so-called gun show loophole. The Bu