Donald Trump October 2, 2020 6:11 pm Part 2: Local Doctor's Take on Trump's Positive COVID-19 Test Dr. Peter Chin-Hong, an infectious disease specialist at UCSF, provides some insight into President Trump’s positive coronavirus test. US & World Videos 1:48 Bay Area food banks deal with critical shortage 2:25 San Francisco mayoral candidate proposes university campus to revitalize downtown 1:25 South Bay woman's cash back confusion 2:27 ‘California Forever' plan moves forward 3:50 Jeff's forecast: Mountain wind and weekend rain update