Disabled voters may have assistance to vote. The assistant could be the person of your choice or an election worker.
Interpreters at the Polls. If you cannot read English, you may bring the person of your choice (but not your employer, employer's agent, or agent of your union) to provide language assistance with election clerks and to translate the ballot in the voting booth after taking an Oath of Assistance. Likewise a sign language interpreter may be brought to assist in communication with election clerks.
Your assistant must read you the entire ballot, unless you ask to have only parts of the ballot read. He or she must also take an oath affirming that he or she will not try to influence your vote and will mark your ballot as you direct.
If you choose to be assisted by election clerks, a poll watcher and/or state election inspector present in the polling place may observe the voting process to verify that the ballot has been marked as you wanted. If you ask to be assisted by a person of your choosing, no one else may watch you vote.
It is illegal for a person assisting you to:
• mark your ballot in a way other than the way you have asked;
• tell anyone how you voted; or
• try to influence your vote.
(Source: https://hayscountytx.com/departments/elections/resources/elections-frequently-asked-questions/)