Historical Worst

This page ranks the most corrupt actors in American public life using our published scoring methodology. Every entry reflects documented evidence from court records, government investigations, congressional proceedings, and credible historical sources. Scores are not editorial opinions; they are calculated from weighted criteria including severity of offense, duration, financial impact, abuse of public trust, legal outcomes, and systemic damage.

Most Corrupt Individuals

The following table ranks the twenty highest-scoring individuals in our historical corruption database. These are the officials, power brokers, and fixers whose documented corruption was the most severe, sustained, and damaging to American public life.

Most Corrupt Administrations

The following table ranks presidential administrations by the scale, severity, and breadth of documented corruption during their tenure. This measures not merely the president's personal corruption but the systemic corruption within the administration as a whole.

Nixon Administration (Score: 95)

The Nixon administration produced the most consequential corruption scandal in American history. Watergate alone resulted in 69 indictments and 48 convictions, including the Attorney General, White House Chief of Staff, White House Counsel, and several senior aides. Beyond Watergate, the administration engaged in documented abuse of the IRS for political targeting, use of the CIA to obstruct the FBI's Watergate investigation, the secret bombing of Cambodia, the "Enemies List," and Vice President Agnew's separate bribery conviction. Nixon remains the only president to resign from office.

Grant Administration (Score: 88)

The Grant administration was plagued by scandal on an unprecedented scale, though President Grant himself was never personally charged with corruption. The Whiskey Ring (1875) involved over 230 federal officials and distillers in a scheme to defraud the government of millions in liquor tax revenue; Grant's personal secretary Orville Babcock was indicted. The Credit Mobilier scandal implicated a sitting vice president and multiple congressmen. Secretary of War William Belknap was impeached for accepting bribes from Indian trading post operators. The Indian Ring, Star Route mail fraud, and Sanborn Contract scandals further tarnished the administration, resulting in over 110 convictions of officials at various levels.

Harding Administration (Score: 82)

The Harding administration is most infamous for the Teapot Dome scandal, in which Secretary of the Interior Albert Fall leased federal oil reserves at Teapot Dome, Wyoming and Elk Hills, California to private oil companies in exchange for personal bribes totaling at least $404,000 (approximately $7.2 million today). Fall became the first sitting Cabinet member convicted of a felony. The administration also saw the conviction of Attorney General Harry Daugherty's aide Jess Smith (who committed suicide before trial), the corruption of the Veterans Bureau under Charles Forbes (who embezzled an estimated $200 million in contracts), and the Ohio Gang. Harding's circle of cronies who used their access to the White House for personal enrichment.

Reagan Administration (Score: 72)

The Iran-Contra affair, in which senior administration officials secretly sold arms to Iran and diverted the proceeds to Nicaraguan Contra rebels in violation of the Boland Amendment, was the defining scandal. Fourteen officials were charged, eleven convicted (though several convictions were later vacated or pardoned by President George H.W. Bush). Beyond Iran-Contra, the administration saw the HUD rigging scandal (16 convictions), the Savings and Loan crisis (in which deregulation and lax oversight contributed to over 1,000 S&L failures costing taxpayers $132 billion), the Wedtech scandal (multiple convictions), and the EPA scandal (Rita Lavelle convicted of perjury). In total, 138 administration officials were investigated, indicted, or convicted.

Most Corrupt Eras

Corruption in American history has not been evenly distributed. Certain periods produced dramatically higher levels of public corruption due to structural factors: rapid economic growth without regulatory infrastructure, wartime spending without oversight, or political realignments that weakened accountability mechanisms.

The Gilded Age (1870–1900): Score 94

The Gilded Age represents the most systemically corrupt era in American history. The combination of rapid industrialization, minimal regulatory infrastructure, and a political system built on patronage created conditions in which corruption was not the exception but the norm. Railroad companies openly bribed state legislatures and Congress to secure land grants and favorable regulations. Political machines like Tammany Hall controlled entire cities, extracting graft from every public contract. The U.S. Senate was widely known as a "millionaires' club" where seats could be effectively purchased through control of state legislatures (senators were not directly elected until 1913). Boss Tweed alone is estimated to have stolen between $30 million and $200 million from New York City. The Grant administration produced scandal after scandal, Whiskey Ring, Credit Mobilier, Belknap impeachment, while state-level corruption was even more pervasive.

The Watergate / Vietnam Era (1968–1980): Score 90

This era is defined by the most consequential political scandal in American history, but Watergate was only the most visible manifestation of a broader crisis. The Church Committee revelations (1975–1976) documented decades of illegal domestic surveillance, assassination plots, and intelligence agency abuses that had been hidden from Congress and the public. Vice President Agnew's separate resignation for bribery and tax evasion, unrelated to Watergate, underscored how pervasive the rot was. The ABSCAM sting operation caught seven members of Congress accepting bribes on videotape. And the broader Vietnam-era revelations about government deception (the Pentagon Papers) shattered public trust in ways that have never fully recovered.