There has been much discussion about whether votes in this next election will be counted securely.
Every state has rules about what poll observers can do at the polls and how votes can be challenged. Here are the rules for your state:
Tennessee Each political party and any organization of citizens interested in a question on the ballot or interested in preserving the purity of elections and in guarding against abuse of the elective franchise may appoint poll watchers. The county election commission may require organizations to produce evidence that they are entitled to appoint watchers. All appointed poll watchers must have reached the age of seventeen (17) by election day. A spouse of a candidate on the ballot shall not be eligible for appointment as a poll watcher. Each political party which has candidates in the election and each citizens' organization may have two (2) watchers at each polling place. One (1) of the watchers representing a party may be appointed by the chair of the county executive committee of the party and the other by a majority of the candidates of that party running exclusively within the county in which the watchers are appointed. (Tenn. Code. Ann. § 2-7- 104)
If any person's right to vote is challenged by any other person present at the polling place, the judges shall present the challenge to the person. (Tenn. Code. Ann. § 2-7-123)
No person may be admitted to a polling place except election officials, voters, persons properly assisting voters, the press, poll watchers appointed under § 2-7-104 and others bearing written authorization from the county election commission. (Tenn. Code. Ann. § 2-7-103).