As with posts, polls can only be edited by the original poster, a moderator, or board administrator. To edit a poll, click the first post in the topic, which always has the poll associated with it. If no one has cast a vote then users can delete the poll or edit any poll option. However, if people have already placed votes only moderators or administrators can edit or delete it; this is to prevent people rigging polls by changing options mid-way through a poll