This in-depth study of American history is told through the eyes of U.S. Supreme Court justices and their decisions: from the historic John Marshall Court to today's controversial issues confronting the John Roberts Court. Defining America explores how Supreme Court decisions have been vital in changing America into the nation we have today. Some of the important issues include: The ongoing dispute between 'originalism' and a 'living' constitution. Is the Court impartial or politically motivated? How will the new President Trump court appointees affect abortion, affirmative action, gun control, campaign financing, and the separation of church and state? This timely book is mandatory reading for understanding the complexity of issues as the country moves forward into a new era in American history.