The SU uses a voting system called Single Transferable Vote (STV). Voters rank the candidates for each position in order of preference (1,2,3...etc). Voters don't have to put more than one preference. In order to win, candidates need to gain over 50% of the vote, either by gaining more than half of the first preference votes (#1 votes) or by redistribution of votes. This means that #2 and #3 votes can really impact the outcome of the election!