Election judges in Texas and informed citizens should read the following three items:
(1) "Attorney General Abbott Tells International Election Observers to Abide by Texas Election Laws" at https://www.oag.state.tx.us/oagnews/release.php?id=4195
(2) Texas Poll Watcher's Guide 2012 Q&A
Q. Who is allowed inside the polling place?
1. Election judge and clerks. [Secs. 32.071 & 32.072].
2. Poll watchers and Secretary of State inspectors. [Secs. 33.052 & 34.002].
3. Persons admitted to vote. [Sec. 63.001].
4. Children under 18 years old who are accompanying a parent who is admitted to vote. [Sec. 64.002(b)].
5. Persons providing assistance to or interpreting for a voter who is entitled to assistance or to an interpreter. [Secs. 61.032 & 64.032; 42 U.S.C. 197aa-6].
6. Federal inspectors appointed by the U.S. Department of Justice.
7. Persons summoned or appointed by the presiding election judge to act as special peace officers to preserve order. [Sec. 32.075].
8. Voting system technician on the request of the authority holding the election. [Sec. 125.010].
(3) Texas Election Code Sec. 32.075. LAW ENFORCEMENT DUTIES AND POWERS.
(c) In performing duties under Subsection (a), a presiding [election] judge has the power of a district judge to enforce order and preserve the peace, including the power to issue an arrest warrant.