mark leno
![](https://cdn.abcotvs.com/dip/images/5673937_110519-kgo-ranked-choice-voting-vid.jpg?w=660&r=16%3A9)
VIDEO: Here's how ranked-choice voting works
San Francisco has been using ranked-choice voting since 2004. The idea is to avoid a costly run-off election and to encourage a winner who has broad support. Here's how it works.
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