John Bolton served as national security adviser to Donald Trump from 2018 to 2019. He was previously the U.S. ambassador to the United Nations and is the author of The Room Where It Happened: A White House Memoir. The following interview was conducted by FRONTLINE’s Gabrielle Schonder on July 31, 2020 during our reporting for the “The Choice 2020: Trump vs. Biden” — FRONTLINE’s critically acclaimed election series featuring the interwoven, investigative biographies of both presidential candidates. It has been edited for clarity and length. Starting Tues., Sept. 22, tune in or stream this two-hour special from veteran FRONTLINE filmmaker Michael Kirk and his team: to.pbs.org/32IVzBb This interview is being published as part of FRONTLINE’s Transparency Project, an effort to open up the source material behind our documentaries. Explore the transcript of this interview, and others, on the FRONTLINE website: www.pbs.org/wgbh/frontline/interview-collection/the-choice-2020/ Learn more about how these interviews were filmed during the pandemic: www.pbs.org/wgbh/frontline/article/behind-the-choice-how-we-filmed-2020-presidential-election-video-interviews-in-a-pandemic #TheChoice2020 #JohnBolton Subscribe on YouTube: bit.ly/1BycsJW Instagram: www.instagram.com/frontlinepbs Twitter: twitter.com/frontlinepbs Facebook: www.facebook.com/frontline FRONTLINE is streaming more than 200 documentaries online, for free, here: to.pbs.org/hxRvQP Funding for FRONTLINE is provided through the support of PBS viewers and by the Corporation for Public Broadcasting. Major funding for FRONTLINE is provided by the John D. and Catherine T. MacArthur Foundation and the Ford Foundation. Additional funding is provided by the Abrams Foundation, the Park Foundation, and the FRONTLINE Journalism Fund with major support from Jon and Jo Ann Hagler on behalf of the Jon L. Hagler Foundation.