I have a new report with Kevin Kosar and Jaehun Lee, jointly published by the American Enterprise Institute and Manhattan Institute:

Portland, Oregon, first used its new proportional ranked-choice voting electoral system to elect city council members in November 2024.

A variety of groups endorsed candidates in this nonpartisan election.

Analyses of these groups’ endorsements point to the emergence of four political blocs: national progressivism, pro-business pragmatism, local progressivism, and laborism.

It is not yet clear what style of politics will emerge in future elections. Possibilities include local multi-partism, local bi-partism based on coalition parties, and continued fluidity, including within the blocs themselves.

Portland’s urban politics may prove unstable and feature shifting alliances among these groups in the run-up to subsequent elections.

The main empirical contribution was analyze parties’ and interest groups’ endorsements of candidates. The figure below gives a sense of the results.