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:
Arkansas Poll watchers shall include any: (1) candidate in person, but only during the counting and tabulation of ballots and the processing of absentee ballots; (2) authorized representative of a candidate; (3) authorized representative of a group seeking the passage or defeat of a measure on the ballot; and (4) authorized representative of a political party with a candidate on the ballot. Only one authorized poll watcher per candidate, group, or party at any one given time may be officially recognized as a poll watcher at each location within a polling site where voters identify themselves to election officials. (Ark. Code Ann. § 7-5-312).
A poll watcher may challenge a voter on the grounds that the voter is not eligible to vote in the precinct or that the voter has previously voted at that election. (Ark. Code Ann. § 7-5-312)