How much does money really matter in American politics? A first-of-its-kind reference book, this encyclopedia provides the most up-to-date research and analysis regarding how money affects American campaigns, elections, politics, and public policy.Some Americans have come to the conclusion that U.S. politics is dominated by money, that politicians are frequently if not routinely "bought and paid for," and that the only entities who wield political power are America's monied "elite" or powerful special interests like "big labor" or "Wall Street." But other American citizens believe that proposals to limit the influence of money in politics run counter to the free speech principles enshrined in the Constitution. This book will explores this compelling and controversial issue, examining where money in American politics comes from, where it goes, and the impact of all of those millions of dollars on American society.The entries objectively cover a breadth of major issues, organizations, individuals, court cases, and controversies surrounding the role of money in American politics, especially into the most recent events of the 21st century. Commentary by leading experts and scholars on American politics assess different aspects of how money is used for political purposes. The book explains the current state of knowledge about money in politics, including whether contributions and expenditures should be regulated; if so, how; and whether it even matters in terms of impact. While intended and written primarily for students at the high school and undergraduate levels, Money in American Politics: An Encyclopedia will also be of interest to general readers and experts looking to better understand how money affects campaigns, elections, and the making of law and policy in the United States.