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:
Florida Each political party and each candidate may have one watcher in each polling room or early voting area at any one time during the election. A political committee formed for the specific purpose of expressly advocating the passage or defeat of an issue on the ballot may have one watcher for each polling room or early voting area at any one time during the election. Each poll watcher shall be a qualified and registered elector of the county in which he or she serves. (Fla. Stat. § 101.131).
Any registered elector or poll watcher of a county may challenge the right of a person to vote in that county. (Fla. Stat. § 101.111).