Earlier this month, President Donald Trump issued an executive order that could ban WeChat, the popular Chinese messaging app, from operating in the United States.  But this potential ban would also have ripple effects on local politics in San Francisco, where about one in five residents are Chinese. Many use the app to talk with family and do business, but also to reach voters and organize around issues like tenants’ rights. So without it, Chinese-speaking residents would lose a pillar of their organizing infrastructure.  Guest: Joe Fitzgerald Rodriguez, Reporter for KQED For the latest information on wildfires currently happening in the Bay Area, visit kqed.org. The newsroom has also put together resources on protecting against wildfire smoke, along with a resource on what to pack in an emergency bag.