Mark R. Levin, one of the pre-eminent conservative and constitutional thinkers in our time, offers a searing and masterful analysis of the role of power in his latest book, ON POWER (Threshold Editions; July 29, 2025; $26.99). Levin is author of Liberty & Tyranny and American Marxism, both of which forever changed the conservative landscape. Together with his other best-selling books, Mark’s books have sold millions of copies.