Three American presidents, Andrew Johnson, Bill Clinton, and Donald Trump, have been impeached. Impeachment is the investigation that takes place when an elected official is accused of illegal activity.

True

Explanation:

This is true as the Three American presidents, Andrew Johnson, Bill Clinton, and Donald Trump, faced impeachment during their tenure although the impeachment processes weren’t a success.

We can also define Impeachment as an investigative process that takes place when an elected official is accused of illegality in any form.

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the deaths of over a million communist soldiers

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