Could Texas hold more than one referendum over time?

Yes. Nothing limits Texas to a single vote. The right of the people to decide their own government is held, in the words of the Texas Constitution, at all times. If a first referendum does not carry, the question can return, the same way it has in other places that voted on independence.

The right does not expire

Article 1, Section 2 of the Texas Constitution says the people have at all times the inalienable right to alter, reform, or abolish their government as they think expedient. At all times. That is not a one-time coupon. The power to put self-government to a vote does not get spent on a single use. It stays with the people, available whenever they choose to exercise it through the Legislature.

The precedents had more than one vote

This is how it has worked elsewhere. Quebec held independence referendums in 1980 and again in 1995, the second one decided by less than one percent. Movements that fall short regroup and come back. A first vote, win or lose, sharpens the case, exposes the opposition's arguments, and shows where the support sits. There is nothing unusual or improper about a people returning to a question this fundamental.

The goal is still to win it the first time

Saying a second vote is possible is not the same as planning to need one. The strategy is to win decisively on the first attempt, because a clear, verified result is the cleanest path to recognition and the hardest for opponents to contest. Support already polls well above the line, and the work is to convert that support into turnout and a margin no one can dispute. We aim to settle it once.

What would not happen

What the people would not tolerate is the reverse trick, a defeated establishment forcing endless re-votes to wear down a yes, or refusing to honor a yes by demanding Texans keep voting until they get a no. The Referendum Act is built to make a yes binding and to act on it. The right to ask again belongs to the people seeking self-government, not to a government trying to overturn the people's decision.

The bottom line

Texas can return to the question as many times as the people choose, because the right is permanent. The plan is to win it once and win it clean. The option to ask again is simply a feature of who holds the power: the people, at all times.