It has long been axiomatic among political professionals that gun-rights supporters vote based on the gun issue, while those who favor more restrictive gun laws don't. Consequently, office-holders believe that contradicting the National Rifle Association (NRA) carries a political cost, while supporting the NRA's position doesn't, even when the group is at odds with what most Americans want. That may partly explain why expanded background checks, which polls have shown enjoy the support of nine out of ten Americans, weren't able to overcome a Republican filibuster to pass the Senate.
But that conventional wisdom may turn out to be wrong. A
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