David Horowitz is a conservative activist and writer who is widely considered a mentor to Stephen Miller, a senior policy adviser to President Donald Trump. Horowitz's candid, full interview was conducted with FRONTLINE during the making of the October 2019 documentary “Zero Tolerance.” Watch the documentary: youtu.be/eW4kQ4akZ1A -- 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 and interactive version of this interview, and others, on the FRONTLINE website: www.pbs.org/wgbh/frontline/interview-collection/zero-tolerance/ -- #ZeroTolerance #Immigration #DavidHorowitz 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, The John and Helen Glessner Family Trust, and the FRONTLINE Journalism Fund with major support from Jon and Jo Ann Hagler on behalf of the Jon L. Hagler Foundation.