Tonight on Amanpour and Company: Sonia Purnell, Author, Just Boris: A Tale of Blond Ambition; Sir Richard Shirreff, Former NATO Deputy Supreme Allied Commander Europe; Christine Ockrent, French Journalist & Yascha Mounk, Author, The Great Experiment: Why Diverse Democracies Fall Apart and How They Can Endure; exclusive interview with Olena Zelenska, Ukrainian First Lady. Walter Isaacson interviews Daniel Yergin, Author, The New Map.