coronavirus September 23, 2020 3:51 pm Fauci, Sen. Rand Paul Have Heated Exchange During Hearing Sen. Rand Paul, R-Ky., and NIAID Director Dr. Anthony Fauci had a heated exchange during a Senate hearing Wednesday on the U.S. response to the coronavirus pandemic. US & World Videos 2:19 San Francisco barbershop struggles to stay open after pandemic 0:51 Alameda County using dogs to detect COVID 3:57 Interview: Doctor's perspective on COVID 4 years after shutdown started 2:27 Marking 4 years since COVID-19 shut down the Bay Area 2:09 CDC updates COVID isolation guidelines