You cannot kick California out of the Union. The Constitution gives Congress the power to admit states but no power to expel one, and the Supreme Court held more than 150 years ago that the Union is permanent. The only conceivable legal path would be a constitutional amendment ratified by three-fourths of the states, a bar so high it has never been seriously attempted for this purpose.
The Constitution Does Not Grant an Expulsion Power
Article IV, Section 3 lets Congress admit new states. That authority runs one way. No clause in the Constitution gives Congress, the President, the courts, or any other federal body the power to force a state out against its will.
Article IV, Section 4 points in the opposite direction. The Guarantee Clause requires the federal government to “guarantee to every State in this Union a Republican Form of Government” and to protect each state against invasion and domestic violence. That is an affirmative duty to protect states, not a discretionary power to discard them.
The Tenth Amendment closes the door. Powers not delegated to the federal government are reserved to the states or the people. Because no expulsion power is delegated, no expulsion power exists.
Texas v. White Settled the Question in 1869
The Supreme Court addressed the permanence of the Union directly in Texas v. White (1869). The case came out of the legal mess following the Civil War: Texas had passed a secession ordinance, and the Court had to decide whether Texas was still a state with standing to sue. Chief Justice Salmon P. Chase wrote that “the Constitution, in all its provisions, looks to an indestructible Union composed of indestructible States.”
Chase traced the Union’s permanence back before the Constitution itself. The Articles of Confederation had declared the Union “perpetual,” and the Constitution was ordained to form “a more perfect Union,” not a weaker one. A state, once in, is in.
Chase identified only two theoretical ways a state could leave: “through revolution or through consent of the States.” Revolution operates outside the legal system by definition. Consent of the States means the formal amendment process. Neither route hands the federal government a unilateral eject button.
What a Constitutional Amendment Would Require
Because the Constitution contains no expulsion mechanism, creating one would mean amending the Constitution under Article V. That requires either a two-thirds vote in both chambers of Congress or a convention called by two-thirds of state legislatures. No such convention has ever been called in the nation’s history.
Proposal is only step one. Ratification needs three-fourths of the states, which today means 38 out of 50. An amendment designed to eject a specific state faces an obvious political problem: the targeted state’s own legislature would vote no, and persuading 37 others to sign off on something this drastic is almost unimaginable. For scale, the most recent amendment to be ratified, the 27th, took over 200 years from proposal to ratification.
The high bar is the point. Article V was written to stop bare majorities from making radical structural changes to the republic on a wave of political anger.
Can California Choose to Leave on Its Own?
No. The same constitutional framework that blocks expulsion also blocks voluntary departure. The “Calexit” movement has periodically pushed to put a question on the state ballot asking whether California should “leave the United States and become a free and independent country.” Organizers need 546,651 valid signatures to qualify for the November 2028 ballot, and passage would require 55 percent voter support.
Even a successful vote would not mean independence. The measure would simply authorize a commission to study “California’s viability as an independent country,” modeled loosely on Scotland’s 2014 referendum. A state ballot measure carries no legal weight against the Supremacy Clause. Under Texas v. White, California’s only legal exits remain revolution or the consent of the other states through a constitutional amendment. The movement is a political pressure campaign, not a legal pathway.
Why the Question Keeps Coming Up
Proposals to expel or separate from California tend to spike during periods of sharp disagreement between the state and the federal government. California’s size, wealth, and policy positions on issues like environmental regulation and immigration make it a frequent target of frustration from both directions. The constitutional framework was built to withstand exactly this kind of pressure. The framers had just watched the Articles of Confederation strain under state-level disagreements, and they designed a system where leaving is functionally impossible without overwhelming national consensus.
What Separation Would Actually Break
The legal answer is that expulsion cannot happen. The practical answer reinforces it: no serious proposal has ever worked through what separation would do, and the scale of the problems helps explain why 38 state legislatures would never agree to it.
Citizenship for roughly 39 million people would need to be sorted out. The Fourteenth Amendment grants citizenship to those “born or naturalized in the United States, and subject to the jurisdiction thereof.” A California outside the Union would no longer be a place where birth confers American citizenship going forward, and the status of those already born there has no clear answer in current law.
Federal programs would stop at the new border. Medicare does not cover health care outside the 50 states, D.C., and a handful of territories. Social Security payments to non-citizens living abroad generally stop after six consecutive months without a treaty-based exception, and a newly separated California would have no such treaty on day one. Federal student loans, veterans’ benefits, agricultural subsidies, disaster relief, and Medicaid matching funds would all be in play.
Federal property and debt would require division on a scale with no precedent. The federal government owns roughly 45 percent of California’s land, about 45.5 million acres, including national parks, national forests, and Bureau of Land Management holdings. California also hosts more major military installations than almost any other state, and under federal law the government must remediate contamination at military properties before transferring them. Past base closure rounds have generated cleanup bills exceeding $13 billion for far fewer bases than California’s inventory. On top of that, total gross federal debt stood at approximately $38.4 trillion in late 2025; California’s proportional share, calculated either by population or by its 15.9 percent contribution to federal revenue, would run into the trillions.
The economic rupture would land on both sides. California’s economy produced $4.25 trillion in GDP in 2025 and contributed 15.9 percent of total federal revenue in fiscal year 2024. The remaining states would need to absorb that shortfall or cut spending dramatically. Trade between California and the other 49 states would become foreign commerce subject to tariffs and customs, disrupting the ports that handle a large share of goods entering the country from Asia. California would also lose its 54 electoral votes, 52 House seats, and 2 Senate seats, reshaping the political balance of the remaining Union for a generation.
Until someone has workable answers to all of those questions at once, and until 38 state legislatures agree to rewrite the Constitution to allow any of it, the idea remains what it has been since 1869: a way to express political frustration, not a legal option.