Why the GOP is “locked" in a "cage of fear” when it comes to Donald Trump "CBS This Morning" has the first look inside a new book that’s expected to have both Republicans and Democrats talking. The book, “American Carnage: On the Front Lines of the Republican Civil War and the Rise of President Trump,” features more than 300 interviews with top Republican leaders of the last 20 years. Author Tim Alberta joins “CBS This Morning” to discuss the book, and share why GOP lawmakers are "locked in a cage of fear" when it comes to Donald Trump.