The definitive history of the modern United States Senate, and the outsized figures who shaped its role in the twentieth century. In this sweeping narrative, acclaimed political historian Lewis L. Gould chronicles over one hundred years of Senate history, from the Progressive Era to the war in Iraq. Over the course of the twentieth century, the most powerful legislative body in the world grappled with great questions of empire and democracy, war and peace, capital and labor, fascism and communism, race relations, women's rights, and terrorism. In addition to towering figures such as Henry Cabot Lodge, Sr., William E. Borah, and Lyndon Johnson, Gould also highlights the stories of lesser-known Senate leaders who have played vital roles in America's upper house. At the beginning of the twenty-first century, controversy surrounding the Senate is intensifying-as is its political power. Lewis L. Gould's masterful history is essential reading for anyone seeking to understand the past, present, and future of American politics.