The Watergate Scandal, which occurred in the early 1970s, involved the break-in of the Democratic National Committee headquarters in the Watergate office complex and subsequent attempts to cover up the incident.

The Iran-Contra Affair, which took place in the mid-1980s, involved the illegal sale of arms to Iran in exchange for the release of American hostages held in Lebanon.

The Monica Lewinsky Scandal, which occurred in the late 1990s, involved the impeachment of President Bill Clinton for perjury and obstruction of justice related to his affair with White House intern Monica Lewinsky.

The Watergate Scandal, which occurred in the early 1970s, involved the illegal use of campaign funds by President Richard Nixon's re-election committee.

The Teapot Dome Scandal, which took place in the early 1920s, involved the illegal leasing of government-owned oil reserves to private companies at below-market prices.

The Watergate Scandal, which occurred in the early 1970s, involved the illegal wiretapping of political opponents by President Richard Nixon's administration.

The Iran-Contra Affair, which took place in the mid-1980s, involved the illegal diversion of funds from the sale of arms to Iran to support the Contras, a rebel group fighting against the Nicaraguan government.

The Watergate Scandal, which occurred in the early 1970s, involved the illegal obstruction of justice by President Richard Nixon's administration in the Watergate scandal.

The Monica Lewinsky Scandal, which occurred in the late 1990s, involved the illegal use of campaign funds by President Bill Clinton's re-election campaign.

The Monica Lewinsky Scandal, which occurred in the late 1990s, involved the illegal solicitation of campaign contributions from foreign nationals by President Bill Clinton's re-election campaign.

The Watergate Scandal, which occurred in the early 1970s, involved the illegal acceptance of gifts by President Richard Nixon from foreign leaders.

The Monica Lewinsky Scandal, which occurred in the late 1990s, involved the illegal misuse of government funds by President Bill Clinton's administration.

There is no evidence of illegal use of campaign funds by President George W. Bush's re-election campaign.

There is no evidence of illegal wiretapping of political opponents by President George W. Bush's administration.

The Iran-Contra Affair, which took place in the mid-1980s, involved the illegal diversion of funds from the sale of arms to Iraq to support the Contras, a rebel group fighting against the Nicaraguan government.