The California secession movement has been around for a while, but it got a jolt of energy from Donald Trump’s election as president.
getting there will be extraordinarily hard. An 1869 Supreme Court ruling called Texas v. White suggests that there are only two ways for a state to leave the union: “through revolution or through consent of the States.”
YesCalifornia rejects revolution. So independence could come only after a series of increasingly unlikely events — assuming the referendum gets on the 2019 ballot at all, something California voters will first have to decide in 2018.
All peaceful avenues to independence involve amending the U.S. Constitution — meaning the legislatures of two-thirds of the states would have to consent to letting the country’s biggest state and its most powerful economic engine walk away.