[losvedir]

Some quick examples that come to my mind:

* Drug laws (i.e.: Colorado has "legalized" marijuana but it's still federally illegal and for now the federal government is just ignoring enforcement for now, but there's no reason, e.g. Ted Cruz would continue to do so.) The laws are based on "interstate commerce" which the federal government how power over, yet somehow it still applies to state-grown marijuana.

* A lot of stuff very close to a "war" has been done without states actually voting to go to war.

* Personally, I'd like a state to be able to experiment with a basic income guarantee and corresponding removal of minimum wage, but that wouldn't be possible because of the federal minimum wage law.

* Federal agencies like the FBI, CIA, and NSA have been growing in power lately with their FISA court rubber stamps and attempted use of All Writs.