Lobbying in the United States describes paid activity in which special interest groups hire well-connected professional advocates, often lawyers, to argue for specific legislation in decision-making bodies such as the United States Congress. It is often perceived negatively by journalists and the American public; critics consider it to be a form of bribery, influence peddling, and/or extortion. Lobbying is subject to complex rules which, if not followed, can lead to penalties including jail. Lobbying has been interpreted by court rulings as free speech protected by the First Amendment to the U.S. Constitution. Since the 1970s, the numbers of lobbyists and the size of lobbying budgets has grown and become the focus of criticism of American governance.

Washington, D.C., formally the District of Columbia and commonly called Washington or D.C., is the capital city and federal district of the United States. The city is on the Potomac River, across from Virginia, and shares land borders with Maryland to its north and east. Washington, D.C., was named for George Washington, a Founding Father and the first president of the United States. The district is named for Columbia, the female personification of the nation.