Jeff Sessions used to be a champion of states’ rights. Then California legalized weed

Erwin Chemerinsky writes for The Sacramento Bee, Jan. 8, 2018

Throughout American history, conservatives have championed “states’ rights.” Sessions himself has done so on countless occasions, such as when he rescinded the Obama policy interpreting federal law to protect transgender students. But when Sessions does not like what states are doing, such as legalizing possession of small amounts of marijuana, his commitment to federalism and states’ rights vanishes.