Can Texas legally secede from the United States?

Hey, Texplainer: Britain voted to leave the European Union. Can Texas secede from the United States? In the wake of Britain’s historic vote to leave the European Union — nicknamed the “Brexit” — speculation of a Texit on the horizon has cropped up once again. The secessionist movement has a long history in the Lone Star State. Delegates for the Texas Republican Party even recently debated adding secessionist language to the party’s platform.