Steven Hill is not on San Francisco’s November ballot, but few actual candidates have been as influential, or controversial, in this year’s election. Mr. Hill, an author and public speaker, is considered the guru of ranked-choice voting, a system that creates an instant-runoff by having voters select their top three favorite candidates in order of preference. The system was adopted in San Francisco in 2004, but this election is the first time it will be employed in a competitive mayoral race in the city, since Gavin Newsom ran without serious opposition in 2007.
Mr. Hill, who travels the world promoting changes in electoral systems, said that ranked-choice voting improved turnout, saved money by avoiding expensive, and usually poorly attended, runoff elections and encouraged politicians to reach out to more-diverse constituencies. “You need both a strong core of support to avoid being eliminated in the first round, plus a broad base,” Mr. Hill said.
The system has made campaigning more complex. If no candidate gets a majority, the person at the bottom of the poll is dropped and the second and third choices of his supporters are added to the tallies of the remaining candidates. This continues until someone reaches 50 percent. In some cases, candidates who were not the first choice of a large majority of voters have been elected.