Which example of federalism was most interesting to you? Why?

What do we want from federalism?” asked the late Martin Diamond in a famous essay written thirty years ago. His answer was that federalism— a political system permitting a large measure of regional self-rule—presumably gives the rulers and the ruled a “school of their citizenship,” “a preserver of their liberties,” and “a vehicle for flexible response to their problems.”

Explanation:

china unilaterally claims the entire south china sea as sovereign territory, then builds artificial islands to bolster its claim. it suddenly activates an air defense identification zone over the east china sea, and threatens to down any aircraft that does not report its position. it builds roads into indian territory, then redraws the maps to show that it is actually chinese territory. the people's republic under president xi jinping is quickly becoming the bully of asia.

i would say that the politicial parties from state to state varies.