SAN FRANCISCO — San Francisco Mayor London Breed spent the weekend making her closing arguments to voters, telling them she is battle-tested after leading the city through the pandemic and is ready for another term.

Breed, San Francisco’s first female black mayor, is in the political fight of her life. She has 12 rivals who believe they can do a better job than she can in a city that is one of the least affordable and most unequal places in the country.