To do that, we have one of the plaintiffs in the case. Travis White is the President of the Firearms Regulatory Accountability Coalition (FRAC), which filed suit against the NFA the same day the federal government officially slashed a number of NFA taxes to $0. He said that's what made the NFA vulnerable to a challenge, at least the provisions that regulate silencers, short-barrel rifles and shotguns, and what the law calls "any other weapons."

US District Judge James Wesley Hendrix agreed. He ruled that the NFA sections whose taxes were eliminated also lost their constitutional justification. White said the judge was persuaded by the plaintiffs' argument that the NFA is, at its heart, an exercise of Congress's taxing power and its provisions can only stand if they are in furtherance of collecting revenue.

White said Hendrix agreed with FRAC that a $0 tax can't justify imposing registration, fingerprinting, and various other requirements to prove it has been paid. White argued that if a tax doesn't even try to raise funds, then it can't be considered a tax. Hendrix was persuaded.

But that didn't end the inquiry. White said the judge also determined the remaining NFA taxes on machineguns or gun makers don't mean the regulations on the untaxed items can stand. He also brushed aside a justification based on the Necessary and Proper Clause. And he concluded the NFA doesn't fit under the federal government's power to regulate interstate commerce either.

Special Guest: Travis White.