The leading candidates for San Francisco mayor will face off in their first debate tonight.

This comes as a new poll released by Mark Farrell's campaign shows him unseating Mayor London Breed. 

For more, KCBS Radio news anchors Eric Thomas and Margie Shafer spoke KCBS Insider Phil Matier.

You can listen to this entire interview and past Phil Matier interviews on the Audacy App. Download the app on your smartphone and favorite KCBS Radio. The interviews are posted in the On Demand section or you can utilize the Rewind feature to listen back.