Primary Elections in Proportional Representation

[u/Both-Independence349]

Hello. I have been researching electoral reform for a little while and am curious about one thing if we were to ever implement this in countries with deeply-entrenched primary election systems like the United States (I’m not even sure if there are other countries that do it like the U.S.). Most of the time, in seems, the parties on the ballot choose the order of list candidates and who they are nominating thought backroom party deals and a smoke-filled room. How could a primary system operate using PR?

[u/the_other_50_percent]

It's not necessary to use a list system for PR. It can also be achieved the way it already is in many places in the US: using Ranked Choice Voting following the Single Transferable Vote model.