In the case of Texas it would not, technically, be secession. They have a unique agreement, as an autonomous Republic, with the United States and can get out anytime they wish.
I don’t expect “experts” and talking head morons to know facts.
I think montana has a similar setup and agreement.
Could you quote that agreement please? Just curious.
Texas can get out anytime regardless of whether it has an agreement or not. Secession isn’t prohibited by the Constitution and is therefore a right reserved by the states by the 10th Amendment.