I further note that "in any court" including state courts makes sense in light of the full faith and credit clause, which requires both states and the fed to give full faith and credit to each court's judgments. This leads to some interesting jurisdictional issues respecting first in time and supremacy. See for example the rooker-feldman doctrine.  

https://en.m.wikipedia.org/wiki/Rooker%E2%80%93Feldman_doctrine