If the Union so much as raises an eyebrow at our intent to split up, our annexation contract with the Union is breached, null and void, and Texas forthwith reverts to her own Sovereign Country.
Doesn’t the annexation documents provide for this to occur as provided for under the US Constitution? Thus the Congress would have a say.
Haven’t delved that deep (but I am going to), but I highly doubt Sam would let Congress decide our Sovereignty, should Texas need to employ the ‘nucular’ option.
It would be pointless to demand the 5-state solution if it were subject to congressional oversight.