Maine again backs ranked-choice voting

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9. We have it in Australia in all elections

And call it Preferential Voting. Here's an explanation of how it works.

https://www.sbs.com.au/news/explainer-what-is-preferential-voting

HOW IT WORKS

On a ballot paper, placing a number one against a candidate is considered the first preference or primary vote.

If no candidate secures an absolute majority of primary votes, the candidate with the fewest votes is then eliminated from the count.

The votes for this eliminated candidate are then redistributed among the remaining candidates according to the number two preference indicated on the original ballot.

This process of elimination based on preferences continues until a candidate secures an absolute majority.

Such a process enables a two-party system to ultimately emerge, whereby all votes are effectively divided between two major parties – in this case, the Labor and Liberal parties.