In his new book The Invisible Coup: How American Elites and Foreign Powers Use Immigration as a Weapon, bestselling investigative author and Breitbart News Senior Contributor Peter Schweizer documents that jihadist leaders -- led by the Muslim Brotherhood and aligned Islamist movements operating both overseas and inside the United States -- have long treated mass migration, now weaponized through the exploitation of modern immigration systems, not as a humanitarian phenomenon but as a deliberate strategy of conquest meant to penetrate, subvert, and ultimately remake the United States from within.