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Every few months, the question seems to come up: If Texas wanted to, could it secede from the United States?
Simply put, the answer is no. Historical and legal precedents make it clear that Texas could not leave the Union — at least not legally.
The idea is most often raised by conservatives in the state who are angry over some kind of policy coming from the federal government — and the calls seem to become more frequent when a Democrat is occupying the White House. This week, state Rep. Kyle Biedermann, R-Fredericksburg, filed a bill on Tuesday to create a referendum election on whether Texans should create a joint legislative committee "to develop a plan for achieving Texas independence."
"It is now time that the People of Texas are allowed the right to decide their own future," he said in a statement announcing the legislation.
The bill doesn't appear to have much of a chance. And even if it did, experts say, Texas can't just secede.
“The legality of seceding is problematic,” Eric McDaniel, associate professor of government at the University of Texas at Austin, told The Texas Tribune in 2016. “The Civil War played a very big role in establishing the power of the federal government and cementing that the federal government has the final say in these issues.”
Many historians believe that when the Confederacy surrendered at Appomattox in 1865, the idea of secession was also defeated, according to McDaniel. The Union’s victory set a precedent that states could not legally secede.
Some have pointed to Britain's 2016 vote to leave the European Union as an example. But it's important to note that the European Union is a loose association of compound states with pre-existing protocols for a nation to exit. In contrast, the U.S. Constitution contains procedures for admitting new states into the nation, but none for a state to leave.
Yet the myth that Texas can easily secede persists, in part, because of the state’s history of independence.
Texas declared independence from Mexico in 1836 and spent the next nine years as its own nation. While the young country's leaders first expressed interest in becoming a state in 1836, the Republic of Texas did not join the United States until 1845, when Congress approved the Joint Resolution for Annexing Texas to the United States.
This resolution, which stipulated that Texas could, in the future, choose to divide itself into "New States of convenient size not exceeding four in number, in addition to said State of Texas" is often a cause of confusion about the state’s ability to secede. But the language of the resolution is clear: Texas can split itself into five new states. It says nothing of splitting apart from the United States.
In the years after Texas joined the union, tensions over slavery and states’ rights mounted. A state convention in 1861 voted 166-to-8 in favor of secession — a measure that was then ratified by a popular vote, making Texas the seventh state to secede from the Union.
After the Civil War, Texas was readmitted to the Union in 1870.
Yet even before Texas formally rejoined the nation, the U.S. Supreme Court declared that secession was not legal, and thus, even during the rebellion, Texas continued to be a state. In the 1869 case Texas v. White, the Court held that individual states could not unilaterally secede from the Union and that the acts of the insurgent Texas Legislature — even if ratified by a majority of Texans — were "absolutely null."
If there were any doubt remaining after that, late Supreme Court Justice Antonin Scalia set it to rest more than a century later with his response to a letter from a screenwriter in 2006 asking if there is a legal basis for secession.
“The answer is clear,” Scalia wrote. “If there was any constitutional issue resolved by the Civil War, it is that there is no right to secede. (Hence, in the Pledge of Allegiance, 'one Nation, indivisible.')”
Matthew Watkins contributed reporting.
Editor's note: A version of this story originally published in 2016.