They need to be narrow. X state law said this but your executive or judicial branch did this. I think the states need to be able to do their own oversight because the alternative might start out sounding like a big own of "leftist judges" but turn out to be a boon to leftist (or rightist) legislatures. And open the door to that lefty wet dream of federal oversight. Let the several states gather their own folks at the statehouse and may the best tar and pitchforks win.