Attorney, author and former New York gubernatorial candidate Zephyr Teachout joins hosts Katie Halper and Matt Taibbi to talk about the role of monopolies in the American politics, economies, and tech. Matt and Katie break down the drama in the Ed Markey vs. Joe Kennedy III Massachusetts Senate race, and react to the first half of the Republican National Convention. 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/