The Keating Five were five United States Senators accused of corruption in 1989, igniting a major political scandal as part of the larger savings and loan crisis of the late 1980s and early 1990s. The five senators—Alan Cranston (Democrat of California), Dennis DeConcini (Democrat of Arizona), John Glenn (Democrat of Ohio), John McCain (Republican of Arizona), and Donald W. Riegle, Jr. (Democrat of Michigan)—were accused of improperly intervening in 1987 on behalf of Charles H. Keating, Jr., chairman of the Lincoln Savings and Loan Association, which was the target of a regulatory investigation by the Federal Home Loan Bank Board (FHLBB). The FHLBB subsequently backed off taking action against Lincoln.
Lincoln Savings and Loan collapsed in 1989, at a cost of $3.4 billion to the federal government. Some 23,000 Lincoln bondholders were defrauded and many investors lost their life savings. The substantial political contributions Keating had made to each of the senators, totaling $1.3 million, attracted considerable public and media attention. After a lengthy investigation, the Senate Ethics Committee determined in 1991 that Cranston, DeConcini, and Riegle had substantially and improperly interfered with the FHLBB's investigation of Lincoln Savings, with Cranston receiving a formal reprimand. Senators Glenn and McCain were cleared of having acted improperly but were criticized for having exercised "poor judgment".
All five senators served out their terms. Only Glenn and McCain ran for re-election, and they both retained their seats. McCain would go on to run for President of the United States twice, and was the Republican Party nominee in 2008. McCain was the last senator remaining in his office before his death in August 2018.