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Re:Maine Becomes First State to Use Ranked-Choice Voting in ... by zajio1am on Friday October 30, 2020 @02:25PM (#24945354)
> There is one thing that is worse than FPTP: The Top-Two Primary. A bunch of candidates run, if no one gets 50% then the top two vote-getters face off in a second round with no other options allowed.

Well, that is just plain two round system, it is pretty common and definitely better than FPTP. The bizzare outcome you describe may also happen with FPTP, you just need one candidate from party A and several candidates from party B. The solution is same as in FPTP system - each party endorses just one candidate.

Re:Maine Becomes First State to Use Ranked-Choice Voting in ... by M2Ys4U on Monday November 02, 2020 @04:51AM (#24966294)
>Well, that is just plain two round system, it is pretty common and definitely better than FPTP.

I would differentiate it from a two-round system in that voting takes place on a single ballot paper.

In two-round elections there is the ability to use the information about who is in the top 1 to cast the second vote.

In Supplemental Voting an elector has no information as to who's going to be in the top 2 when they cast the second preference.