In an exchange with @MeghanMcCain, Cory Booker pushes back against McCain's criticism of Beto O'Rourke and explains his support for mandatory assault weapon buybacks: "Other countries have done it. We did it with machine guns" https://t.co/gDKtp7VYF4 pic.twitter.com/yrLaNnDEGS

— ABC News Politics (@ABCPolitics) October 30, 2019