I’ve recently been a vocal proponent of rank choice voting. I literally haven’t seen any cons to it, and I think it’s the only chance of ever getting a 3rd party in the office, which I want SO BADLY
It’s not a “con” per se, but because ranked choice/instant runoff eliminates a candidate in each round, it can result in a similar effect where a new candidate further to the left or right of the otherwise most popular candidate can actually result in them being eliminated and the least popular candidate winning as a result. It’s called the “center squeeze” effect. It’s issue that already exists with plurality voting, “the spoiler effect”, but to a lesser capacity, so it’s definitely an improvement. But it’s still a problem when two similar candidates run at once.
I prefer approval voting because so long as everyone votes honestly, no candidate entering the race can spoil the results for the other candidates except to be more popular and win. With approval, you cast one vote to every candidate who you would approve of at all for the office, and rhe winner is the one who is approved by the most. There is the potentiality for issues there too, but only from some voters being being overly strategic and harming their own interests as a result. There’s no downside to voting honestly in approval voting systems.
Regardless, both systems are objectively better than plurality. What’s more, the absolute worse case scenario for overly strategic voting both systems is that everyone only votes for one candidate… which is just plurality voting. That means the absolute shittiest outcome for either system is… the system nearly everyone already uses now.
That’s a big ask. If I think the vote will probably end up between two candidates I would be fine with winning, I am incentivized to only list the one I prefer. Likewise, if I think the vote will end up going to one of two candidates I would generally not be fine with winning, I am incentivized to list the one I perceive as the lesser evil regardless of my true preferences.
In the end, approval voting comes down to ranked choice voting, but instead of giving ranks you pick a rank threshold where everything above that rank is approved and everything below disapproved. The choice of that threshold is very vulnerable to strategic voting.
I do agree with you that it’s in most cases a better system than plurality though. Even if you strategically lower your threshold to put a lesser-evil type choice as your lowest accepted rank, you do still hand in an approval vote for every candidate above that one. Vice versa with disapproval and strategically raising the threshold.
The first what if you suggested is the one that will most likely bite you in the ass. If two candidates are similar and overwhelmingly popular, the more people that vote only for their most preferred are each making it more likely that the one candidate(s) they don’t approve of have a more competitive number of votes. It’s simply a bad strategy. While I think plenty will think that way in the shirt term, I would argue that the incentive is actually to not push that strategy, which will better serve everyone in the long term.
As for the lesser of two evils vote, that’s not a problem, that’s a feature. You can still vote for the lesser of two evils for the candidates you think has a chance AND for the candidates you actually approve of. The point of approval voting is to find the candidate that is MOST approved of. Even if angry single person voted for all of the candidates except their idea of the worst one, at the very least, that still eliminates the possibility of the least popular candidate from being elected. There can definitely be some spoilage there, an extremist candidate makes an easy target to rally against and a slightly less extreme though still fringe candidate gets more votes as a result, but it is still an unlikely outcome for them to have enough support to win a race that they are unpopular in.
Let’s say there are 4 candidates, A B C and D, and a large group of people have them in that order of preference, their (honest) acceptance would be A and B, but they’d much prefer C over D if those were the only two options.
A prominent forecast comes out and predicts a tossup between C or D. They all act in self-interest and strategically list A B and C as approved, to lower the chance of D winning over C.
Now that forecast was wrong about A’s low chances for whatever reason and had they solely and honestly put down A and B, A would’ve barely won. All of them adding C doomed them to have to put up with someone they don’t honestly approve of.
As you said before though, if we take this scenario into a single vote fptp system, we have all of them giving their single vote to C. Not only does this harm the chances of A winning even more, it also reinforces never voting for A as “A doesn’t have a chance anyway and voting for A would be a wasted vote”.
You can also construct a similar scenario the other way around for leaving out a candidate the group would approve of.
You’re correct in all this. I simply think the real world application of approval is unlikely to typically end up with results like this. It’s not impossible, but it could easily happen. The only thing ranked choice has on approval is that you can… well, rank your choice, providing weight to some candidates over others. But the standard ranked choice center squeeze effect is a pretty big problem to me. Also, sometimes the rank is arbitrary between two candidates you like equally well.
I have heard an interesting idea of using a scored approval instead. Where for n candidates, you rank the candidate you would most approve of with the number n. Then each other candidate you approve of in descending order (n-1, n-2, etc.). So in your ABCD example. If you are trying to make sure D doesnt win, you would rank A as 4, B as 3, and C (the lesser of two evils) as 2, and leave D blank. You then add those scores up and the winner is the one with the highest score. This would provide weighed results for the approval to your most preferred candidates, allowing you to give a measured amount of support to any given candidate. However, this still has the arbitrary ranking issue for similarly liked candidates. Maybe you could vote whatever rank any number of times you wish for any candidates? Idk. I’d have to try it or see some examples to think it through properly.
RCV is infinitely better than the current system, but there are problems with it. It’s possible and not uncommon for the most preferred candidate to get squeezed out of the race.
In this context, not everyone’s first choice, but the one that the majority could support against each other candidate individually.
For example if you have candidates A, B, and C, with 35%, 31%, and 34% of the 1st choice votes respectively. B gets eliminated. Only 50% of their voters put down a second choice, and their 2nd choice votes are almost evenly split between A and C, but slightly favor C. So lA and C end up with 49% and 51% of the remaining votes, respectively and C wins.
However, basically everyone that didn’t put B as their first choice did put them as their second choice because they did NOT like their ideologically opposing candidate at all). So, if A hadn’t run, the results would have been B with 65% of the vote and C with 35%. If C hadn’t run, the results would have been B with 66% and A with 34%. Either way, B would have won by a landslide in those races, but instead B got eliminated in the first round which gave C the narrow win.
It seems like that maximum number of people would have at least approved of the outcome if B had won. Instead, only a minority of people people’s votes ended up deciding the winner and everyone else sees the outcome as unfavorable.
This is I prefer approval voting. Two candidates never have to have split support and there is no worry about unsure elimination. So long as everyone honestly votes for whomever they would approve of, the candidate with the most support will win.
Sort of. In this case, yes, but there’s not always a condorcet winner in any given election. I was more using the condercet winner criterion here (without knowing the term, thank you!) as an example to show how B was actually really popular despite being eliminated in Ranked Choice. But it’s not always about being the most popular candidate against every other individual candidate.
For the person to be squeezed out, a majority of voters would need to have them as their second choice, but not meet the threshold of first choice votes to continue. They would be considered the preferred compromise candidate, but they get squeezed out of the race and polarizing the second round
Sorry if I’m being dense, but I’m asking what “most preferred” literally means, not what would happen under RCV. Do you mean like the majority criterion or the Condorcet winner criterion?
By most preferred, I mean the most number of votes in favor of the person. That person can get squeezed out if they receive a majority of second place votes.
I dont wanna type a long reply, but IMHO the easiest way to get a 3rd party in the US is:
Run a 3rd party in the few states with RCV for House seats (Maine, Alaska). Promise to caucus with whichever party would otherwise win the seats there on important issues. Currently that would give you 3 reps iirc.
Cross your fingers and hope for a divided house.
This tiny party would now be a kingmaker. It could make legislation aiding PR/RCV the primary condition of its support. Namely repealing the Uniform congressional districts act which currently prevetns any state from adopting PR.
I’ve recently been a vocal proponent of rank choice voting. I literally haven’t seen any cons to it, and I think it’s the only chance of ever getting a 3rd party in the office, which I want SO BADLY
It’s not a “con” per se, but because ranked choice/instant runoff eliminates a candidate in each round, it can result in a similar effect where a new candidate further to the left or right of the otherwise most popular candidate can actually result in them being eliminated and the least popular candidate winning as a result. It’s called the “center squeeze” effect. It’s issue that already exists with plurality voting, “the spoiler effect”, but to a lesser capacity, so it’s definitely an improvement. But it’s still a problem when two similar candidates run at once.
I prefer approval voting because so long as everyone votes honestly, no candidate entering the race can spoil the results for the other candidates except to be more popular and win. With approval, you cast one vote to every candidate who you would approve of at all for the office, and rhe winner is the one who is approved by the most. There is the potentiality for issues there too, but only from some voters being being overly strategic and harming their own interests as a result. There’s no downside to voting honestly in approval voting systems.
Regardless, both systems are objectively better than plurality. What’s more, the absolute worse case scenario for overly strategic voting both systems is that everyone only votes for one candidate… which is just plurality voting. That means the absolute shittiest outcome for either system is… the system nearly everyone already uses now.
https://youtu.be/yhO6jfHPFQU?si=bclD7t8BqWzlz1Ne
That’s a big ask. If I think the vote will probably end up between two candidates I would be fine with winning, I am incentivized to only list the one I prefer. Likewise, if I think the vote will end up going to one of two candidates I would generally not be fine with winning, I am incentivized to list the one I perceive as the lesser evil regardless of my true preferences.
In the end, approval voting comes down to ranked choice voting, but instead of giving ranks you pick a rank threshold where everything above that rank is approved and everything below disapproved. The choice of that threshold is very vulnerable to strategic voting.
I do agree with you that it’s in most cases a better system than plurality though. Even if you strategically lower your threshold to put a lesser-evil type choice as your lowest accepted rank, you do still hand in an approval vote for every candidate above that one. Vice versa with disapproval and strategically raising the threshold.
The first what if you suggested is the one that will most likely bite you in the ass. If two candidates are similar and overwhelmingly popular, the more people that vote only for their most preferred are each making it more likely that the one candidate(s) they don’t approve of have a more competitive number of votes. It’s simply a bad strategy. While I think plenty will think that way in the shirt term, I would argue that the incentive is actually to not push that strategy, which will better serve everyone in the long term.
As for the lesser of two evils vote, that’s not a problem, that’s a feature. You can still vote for the lesser of two evils for the candidates you think has a chance AND for the candidates you actually approve of. The point of approval voting is to find the candidate that is MOST approved of. Even if angry single person voted for all of the candidates except their idea of the worst one, at the very least, that still eliminates the possibility of the least popular candidate from being elected. There can definitely be some spoilage there, an extremist candidate makes an easy target to rally against and a slightly less extreme though still fringe candidate gets more votes as a result, but it is still an unlikely outcome for them to have enough support to win a race that they are unpopular in.
I disagree.
Let’s say there are 4 candidates, A B C and D, and a large group of people have them in that order of preference, their (honest) acceptance would be A and B, but they’d much prefer C over D if those were the only two options.
A prominent forecast comes out and predicts a tossup between C or D. They all act in self-interest and strategically list A B and C as approved, to lower the chance of D winning over C.
Now that forecast was wrong about A’s low chances for whatever reason and had they solely and honestly put down A and B, A would’ve barely won. All of them adding C doomed them to have to put up with someone they don’t honestly approve of.
As you said before though, if we take this scenario into a single vote fptp system, we have all of them giving their single vote to C. Not only does this harm the chances of A winning even more, it also reinforces never voting for A as “A doesn’t have a chance anyway and voting for A would be a wasted vote”.
You can also construct a similar scenario the other way around for leaving out a candidate the group would approve of.
You’re correct in all this. I simply think the real world application of approval is unlikely to typically end up with results like this. It’s not impossible, but it could easily happen. The only thing ranked choice has on approval is that you can… well, rank your choice, providing weight to some candidates over others. But the standard ranked choice center squeeze effect is a pretty big problem to me. Also, sometimes the rank is arbitrary between two candidates you like equally well.
I have heard an interesting idea of using a scored approval instead. Where for n candidates, you rank the candidate you would most approve of with the number n. Then each other candidate you approve of in descending order (n-1, n-2, etc.). So in your ABCD example. If you are trying to make sure D doesnt win, you would rank A as 4, B as 3, and C (the lesser of two evils) as 2, and leave D blank. You then add those scores up and the winner is the one with the highest score. This would provide weighed results for the approval to your most preferred candidates, allowing you to give a measured amount of support to any given candidate. However, this still has the arbitrary ranking issue for similarly liked candidates. Maybe you could vote whatever rank any number of times you wish for any candidates? Idk. I’d have to try it or see some examples to think it through properly.
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https://piped.video/yhO6jfHPFQU?si=bclD7t8BqWzlz1Ne
Piped is a privacy-respecting open-source alternative frontend to YouTube.
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RCV is infinitely better than the current system, but there are problems with it. It’s possible and not uncommon for the most preferred candidate to get squeezed out of the race.
What does “most preferred” mean in this context?
In this context, not everyone’s first choice, but the one that the majority could support against each other candidate individually.
For example if you have candidates A, B, and C, with 35%, 31%, and 34% of the 1st choice votes respectively. B gets eliminated. Only 50% of their voters put down a second choice, and their 2nd choice votes are almost evenly split between A and C, but slightly favor C. So lA and C end up with 49% and 51% of the remaining votes, respectively and C wins.
However, basically everyone that didn’t put B as their first choice did put them as their second choice because they did NOT like their ideologically opposing candidate at all). So, if A hadn’t run, the results would have been B with 65% of the vote and C with 35%. If C hadn’t run, the results would have been B with 66% and A with 34%. Either way, B would have won by a landslide in those races, but instead B got eliminated in the first round which gave C the narrow win.
It seems like that maximum number of people would have at least approved of the outcome if B had won. Instead, only a minority of people people’s votes ended up deciding the winner and everyone else sees the outcome as unfavorable.
This is I prefer approval voting. Two candidates never have to have split support and there is no worry about unsure elimination. So long as everyone honestly votes for whomever they would approve of, the candidate with the most support will win.
So Condorcet winner, then?
Sort of. In this case, yes, but there’s not always a condorcet winner in any given election. I was more using the condercet winner criterion here (without knowing the term, thank you!) as an example to show how B was actually really popular despite being eliminated in Ranked Choice. But it’s not always about being the most popular candidate against every other individual candidate.
For the person to be squeezed out, a majority of voters would need to have them as their second choice, but not meet the threshold of first choice votes to continue. They would be considered the preferred compromise candidate, but they get squeezed out of the race and polarizing the second round
Sorry if I’m being dense, but I’m asking what “most preferred” literally means, not what would happen under RCV. Do you mean like the majority criterion or the Condorcet winner criterion?
By most preferred, I mean the most number of votes in favor of the person. That person can get squeezed out if they receive a majority of second place votes.
I dont wanna type a long reply, but IMHO the easiest way to get a 3rd party in the US is: