Reporter Ben Swann of Reality Check answers the question, "Do states actually have the right to secede?"
Links to documents quoted in the video:
Governments are instituted among Men, deriving their just powers from the consent of the governed, that whenever any form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it, and to institute new Government."
The people of Virginia, declare and make known that the powers granted under the Constitution, being derived from the people of the United States may be resumed by them whensoever the same shall be perverted to their injury or oppression, and that every power not granted thereby remains with them and at their will.
The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.
The State of South Carolina, in Convention assembled, on the 26th day of April, A.D., 1852, declared that the frequent violations of the Constitution of the United States, by the Federal Government, and its encroachments upon the reserved rights of the States, fully justified this State in then withdrawing from the Federal Union.