The United States has become increasingly polarized in recent years, although the concept of a two-party system is nothing new. This book traces the major parties' utter dominance--within the highest elected positions all the way down to nonpartisan political offices across the US--from the founding of the Constitution through the 2020 presidential election. Even before the founding of the modern Republican Party in 1854 and the next 168-year era of Democratic-GOP dominance, the early decades of American nationhood were ruled in a similar manner by two major parties of the day. This text is a comprehensive, fast-paced analysis of how the two-party system has grown to be such an affront to the ideals of the Founding Fathers and to the numerous Americans of today who appear to accept it as a fact of life.