Texas Election Code - ELEC § 33.057. Observing Preparation of Voter's Ballot

(a) A watcher is entitled to be present at the voting station when a voter is being assisted by an election officer, and the watcher is entitled to examine the ballot before it is deposited in the ballot box to determine whether it is prepared in accordance with the voter's wishes.

(b) A watcher may not be present at the voting station when a voter is preparing the voter's ballot or is being assisted by a person of the voter's choice.