Will it stand and Fight the Texas National guard?
Thats the real problem - The National grip on the Guard’s alligence.
Most likely is that the Texas National Guard will refuse to respond to either side in such a matter. There’s enough Texas loyalists in the TxNG to make whether trying to put units in the field an open question as to how good an idea it would be.
And yes, I can see the State Guard holding the Capitol steps against the National Guard.