The "Master's Voice" is the scholarly voice of Harvard Law School professor Laurence H. Tribe. Professor Tribe is one of the foremost - if not foremost - authorities on U.S. constitutional law. Professor Tribe's scholarly credentials regarding U.S. constitutional law are extremely impressive and highly authoritative.Professor Tribe's assessment of the scholarly caliber of Joshua Matz, co-author of TO END A PRESIDENCY, is of the highest order.This extremely timely book addresses the current impeachment crisis that poses the potentially greatest threat to the continued existence of the United States.Coincidentally, for the two year duration of the Watergate cover-up, I was attending law school, Professor Tribe's treatise entitled AMERICAN CONSTITUTIONAL LAW is the reference work I utilized for my study of my constitutional law course.Two U.S. Presidents have ever been impeached, but none convicted by the Senate. President Nixon was nearly impeached, but resigned before impeachment occurred. Therefore, the limited U. S. experience with impeachment is very restricted.The present Trump impeachment crisis is continuously revealing an expanding crop of novel legal issues that need to be addressed.The U.S. Constitution has been amended twenty-seven times. It is possible for the U.S. Constitution to be further amended to address additional impeachment issues that are found to be pressing.The text of TO END A PRESIDENCY is very lucid - quite an achievement, considering its complex subject matter about this extremely important topic, which requires the visionary insight of a constitutional scholar like Professor Tribe.TO END A PRESIDENCY has a special meaning for me because this book includes discussions of President Nixon's Watergate scandal. During the two year length of the Watergate scandal, there was saturation news coverage, in THE WASHINGTON POST news articles and editorials and in TV news of the daily events of the daily events related to the Watergate scandal.The two year duration of the Watergate scandal was necessary for U.S. citizens to become familiar with the concept of actually impeaching a U.S. President. That two year time frame should be borne in mind when estimating the amount of time is likely to be needed to address our current constitutional crisis.Judging from the two year time frame of the Watergate scandal, in our current constitutional crisis, as of August 21, 2018, is comparable to the starting kick at the opening of the first quarter of a four quarter game, which is likely to go into overtime.POSTSCRIPT:Customers who desire an impression of Professor Tribe's calm, soft-spoken, unflappable demeanor and style, may view a few minutes of Professor Tribe's presentation, posted on YouTube, under the caption "WASHINGTON JOURNAL: C-SPAN,; To End a Presidency - Trump Impeachment" (56 min - incl. phone-in comments by listeners),