"And though it lost in Oregon, she pointed out that the measure had majority support in jurisdictions that currently use ranked choice voting, such as Multnomah (home to Portland) and Benton counties."
Problem: In Portland, yes, a majority of voters did vote for the state wide ranked choice ballot measure... but 20% of voters completely SKIPPED the ranked choice races for Mayor and City Council.
My city (Oakland) has ranked-choice voting for mayor and city council, and (as far as I’m aware) doesn’t have a similar issue with under-voting.
Was there another factor besides the number of candidates on the ballot (e.g., no candidate statements in voter guides, or an ad campaign against ranked voting)?
It was less the number of signatures and more that this is the very first election for a new system of government, it drew out a TON of people.
Previously, we had a mayor and 5 city councilmen. Each elected city wide in a typical first past the post election.
Now we have a mayor elected citywide in a ranked choice, choose 6 election, who hires a city manager to run the different bureaus.
Then the city is split into 4 districts, each electing 3 councilmen in a rank 6 ballot.
So the city council is going from 5 to 12 and each district is guaranteed representation where often not only was it not guaranteed, there WAS no representation.
All in all, between the mayor and the council seats, 119 people were running.
In this case, the ranked choice voting is supposed to serve as an instant primary.
I guess you could run a 16 candidate primary and narrow it down to the top 6 for a rank 6 general election, but you'd still have the same problem, you'd just be adding a 2nd election.