When viewing the number of up votes and down votes on the elections page, I see some people seem to have a negative number of down votes. How is this possible? What does this mean?
When a vote count is in double digits it has +/- in front of it (for up/downvotes respectively, obviously). When they get to three digits or more, the sign is dropped. That's just the way it is meant to be. See this question from a few days ago. Note that this happens on all vote counts across all sites, not just elections.