The problem with Instant Runoff is called "Favourite Betrayal", where placing a party second can lead to them being eliminated before your vote for them can be

The problem with Instant Runoff is called "Favourite Betrayal", where placing a party second can lead to them being eliminated before your vote for them can be counted. https://www.youtube.com/watch?v=JtKAScORevQ https://www.youtube.com/watch?v=JtKAScORevQ >a candidate can still be elected despite not being approved or preferred by a majority. Only if there are no candidates preferred by a majority, in which case no voting system can produce a result people are happy with. The only way a ranked system could avoid this is by forcing people to choose between options they hate, and calling that a majority, which doesn't seem much better than letting someone with 30% approval win because it was the most. In fact, there's no reason you couldn't add a majority victory criterion to approval voting.