AARP, formerly the American Association of Retired Persons, is the United States-based non-governmental organization

Non-governmental organization

A non-governmental organization is a legally constituted organization created by natural or legal persons that operates independently from any government. The term originated from the United Nations , and is normally used to refer to organizations that do not form part of the government and are...

 and interest group, founded in 1958 by Ethel Percy Andrus, PhD, a retired educator from California, and based in Washington, D.C.

Washington, D.C.

Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

  According to its mission statement, it is "a nonprofit, nonpartisan membership organization for people age 50 and over ... dedicated to enhancing quality of life for all as we age," which "provides a wide range of unique benefits, special products, and services for our members."

AARP operates as a non-profit

Non-profit organization

Nonprofit organization is neither a legal nor technical definition but generally refers to an organization that uses surplus revenues to achieve its goals, rather than distributing them as profit or dividends...

 advocate for its members and as one of the most powerful lobbying

Lobbying

Lobbying is the act of attempting to influence decisions made by officials in the government, most often legislators or members of regulatory agencies. Lobbying is done by various people or groups, from private-sector individuals or corporations, fellow legislators or government officials, or...

 groups in the United States.