What is impeachment a limitation of?

Impeachment is a limitation on the powers of elected officials, primarily the President, by providing a constitutional mechanism for holding them accountable for misconduct, such as treason, bribery, or other high crimes and misdemeanors. It serves as a check on executive authority, ensuring that officials remain answerable to the legislative branch and, by extension, the public. This process reinforces the principle of separation of powers within the government.