Not every invocation of the doctrine of pre - emption will be justified.

不是任何情况下对预防性原则的引用都是正当的.

That ruling is only the latest in a series of cases over the past decade in which the Court has brushed aside pre-emption claims in favor of state sovereignty.

这次决定只是过去十年一系列案例中最新的一个，在这些案例中，最高法院漠视了对各州自主权有利的优先权申诉。