What historical event best demonstrates the operation of checks and balances?

The Watergate scandal of the 1970s is a prime example of checks and balances in action. The investigation into the break-in at the Democratic National Committee headquarters revealed abuses of power by the Nixon administration. As Congress conducted hearings and the Supreme Court ruled against Nixon’s attempts to withhold information, these branches of government effectively checked each other's powers, ultimately leading to Nixon's resignation. This event highlighted the importance of accountability and oversight in a functioning democracy.