Brian C. Kalt is a professor of law and the Harold Norris Faculty Scholar at Michigan State University College of Law.

"If your thoughts have wandered to the subject of how to remove the President, Unable couldn't be more timely. With this deep dive into Section 4 of the 25th Amendment, Brian Kalt exposes the misunderstandings and hyperbole of the law in precise, often humorous, and very readable detail. Lawmakers, Cabinet officials, and partisans on both sides should find themselves reaching for this book." -- C.J. Box, #1 New York Times Bestselling Author of Wolf Pack

"In this highly entertaining and informative book, Brian Kalt provides a superb education on Section 4's nuances and wrinkles, imagining fascinating hypothetical scenarios to help readers understand how the provision works. I highly recommend it to anyone who wants to know more about the 25th Amendment." -- John D. Feerick, Norris Professor of Law and Dean Emeritus, Fordham University School of Law

"Professor Kalt's masterful explanation of what Section 4 does - and does not - allow answers the questions anti- and pro-Trump partisans have about the amendmentâs potential use. It will not satisfy either side - a very reassuring result." -- Henry Olsen, Columnist, The Washington Post; Senior Fellow, Ethics and Public Policy Center

"No one else has Brian Kalt's command of this formerly obscure, suddenly relevant part of the Constitution. I suspect that moving forward, it is to Unable that presidents, politicians, the press, and pundits will turn when in need of a sober understanding of the 25th Amendment." -- Michael Smerconish, Sirius XM and CNN host

"As in his prior work on constitutional law and the presidency, Brian Kalt explains in a thoughtful and engaging way the workings of an important but often misunderstood part of the Constitution. This work will inform interested citizens yet also stimulate thought among scholars in the field." -- Joel K. Goldstein, Vincent C. Immel Professor of Law, Saint Louis University School of Law