It's not okay to sabotage an election.
Hannah is running for class president, and it's expected to be a tight race.
Hannah wants to win the election.
Hannah changes her plans for when she's class president, so they appeal more to the members of her class.
Hannah decides to stuff the ballot box with her name until there are enough votes for her to win.
Hannah gathers a lot of support and ends up winning the election legitimately.
Hannah's teachers recognize her handwriting on the ballots, and she loses the election by default.