Leading biomedical researcher Dr. Robert Gallo shares his thoughts on the various theories for potential covid-19 vaccines. Matt and Katie caution against overconfidence by the left heading into the presidential election. Merch Link: https://teespring.com/stores/useful-idiots Get the full story at: http://www.rollingstone.com/ Subscribe to Rolling Stone on YouTube: http://bit.ly/1uGwgGg Check out http://www.rollingstone.com for the latest news in music, culture, politics and more. More videos from Rolling Stone: http://www.rollingstone.com/video Like Rolling Stone on Facebook: https://www.facebook.com/RollingStone/ Follow Rolling Stone on Twitter: https://twitter.com/RollingStone Follow Rolling Stone on Instagram: https://www.instagram.com/rollingstone/