Don't you mean federalism? A lot of people seem to use it to signify states rights and a balance of power. Such as the historian podcaster Dan Carlin.

Edit- I can't reply below but you are using the term incorrectly and in the context of Anti-Federalists from the 18th century. From Wikipedia on federalism:

> In contrast, Europe has a greater history of unitary states than North America, thus European "federalism" argues for a weaker central government, relative to a unitary state. The modern American usage of the word is much closer to the European sense.