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affinepplan t1_iwsalyf wrote

It depends on the exact implementation.

A common one internationally is called "open-list." You vote for a candidate and your vote counts for both that candidate and for their party.

Seats are awarded to parties based on how many votes they get, then parties send candidates to fill those seats based on how many votes each candidate in the party got.

Alternatively could be implemented as STV, which is used in Cambridge, MA and Minneapolis, is also used in a number of cities in AU, NZ, Scotland, and Wales, and just passed ballot initiatives for future use in Portland, ME and Portland, OR. That version has voters rank candidates (without necessarily any regard for parties) and then selects winners proportionally based on the rankings.

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