There certainly is a lot of political pressure for states to adopt the new federal tax codes. But there is no law that requires them to do so.
“No one knows anything about economics. It's the great lie of the economists. By contrast in football people might have contrasting opinions, each of which has some validity. But the economists always speak in conditionals - what a mess.”
“I had written in another draft a completely different kind of fight, but they said they couldn't afford to shoot it. They needed a fight scene, though, so I was told to put a fight scene in, but not the one I had written.”