PODCAST 58: Professor Brian Kalt—US Constitutional Law Expert—on the 25th Amendment Brian Kalt, an expert on US constitutional law and the presidency, talks to Jonathan Kay about the 25th Amendment and whether it can be used to remove a president. Professor Kalt recently published a book called Unable: The Law, Politics, and Limits of Section 4 of the Twenty-Fifth Amendment. Quillette / Brian Kalt 18 Oct 2019 · 1 min read