See: Texas v White.There is no such thing as a contract that you aren't allowed to break, moron. Check the Supreme Court rulings on that subject if you don't believe it.
You can get started with this:
"When, therefore, Texas became one of the United States, she entered into an indissoluble relation. All the obligations of perpetual union, and all the guaranties of republican government in the Union, attached at once to the State. The act which consummated her admission into the Union was something more than a compact; it was the incorporation of a new member into the political body.
And it was final.
The union between Texas and the other States was as complete, as perpetual, and as indissoluble as the union between the original States. There was no place for reconsideration or revocation, except through revolution or through consent of the States."
Texas-v-White, 74 U.S.
I've seen Texas v. White. That's the decision that tried to justify the Civil War by claiming the confederate states were ALWAYS part of the union. Right, they had no representation in Congress, they couldn't vote, but they were part of the union? It takes an incredible gullibility to swallow that line of "reasoning."
Furthermore, when that decision was handed down, 5 Lincoln appointees were on the court. Yeah, what are the odds that they would have ruled against the federal government?
They had representation, whether they chose to use it or not. Andrew Johnson, Senator from TN, never gave up his seat and continued to represent his state.