At this report, Pierce County Charter Amendment 3 looks headed for approval. (latest results here.) But county voters won’t be alone in adopting instant runoff voting. The cities of Minneapolis and Oakland are likely to go the IRV route, too.

Here’s an election-night report from Rob Ritchie, executive director of fairvote.org, a nonprofit voting-reform group:

The early results on instant runoff voting in Pierce County look pretty encouraging — we’ll see what happens as the night progresses.

I wanted to make sure you knew that the early results in from Minneapolis (65 percent with 86 percent of the vote in) and Oakland (69 percent with only 7 percent of the vote in) are looking good.

Davis (Calif.) is losing 51 percent to 49 percent, after only first absentees counted. That measure is as much about proportional voting as it is about a ranked

choice voting system — e.g., the city would keep at-large elections and have a count method where winning one of the three at-large seats would take about 25 percent of the vote.

The sense was that the measure would do better with Election Day voters. For example, students at the university really like it after using it for their student elections.