Nelson Aldrich Rockefeller, sometimes referred to by his nickname Rocky, was an American businessman and politician who served as the 41st vice president of the United States from 1974 to 1977 under President Gerald Ford. A member of the Republican Party and the wealthy Rockefeller family, he previously served as the 49th governor of New York from 1959 to 1973. Rockefeller also served as assistant secretary of State for American Republic Affairs for Presidents Franklin D. Roosevelt and Harry S. Truman (1944–1945) as well as under secretary of Health, Education and Welfare (HEW) under Dwight D. Eisenhower from 1953 to 1954. A son of John D. Rockefeller Jr. and Abby Aldrich Rockefeller as well as a grandson of Standard Oil co-founder John D. Rockefeller, he was a noted art collector and served as administrator of Rockefeller Center in Manhattan, New York City.

The vice president of the United States (VPOTUS) is the second-highest officer in the executive branch of the U.S. federal government, after the president of the United States, and ranks first in the presidential line of succession. The vice president is also an officer in the legislative branch, as the president of the Senate. In this capacity, the vice president is empowered to preside over the United States Senate, but may not vote except to cast a tie-breaking vote. The vice president is indirectly elected together with the president to a four-year term of office by the people of the United States through the Electoral College. Since the passage of the Twenty-fifth Amendment to the US Constitution, the vice president may also be appointed by the president to fill a vacancy, via majority confirmation by both the Senate and the House.