Who was the first President to be impeached?

Andrew Johnson was the first President of the United States to be impeached in 1868. His impeachment stemmed from his violation of the Tenure of Office Act, which was designed to restrict the president's power to remove certain officeholders without the Senate's approval. Johnson's actions were viewed as an overreach of executive power, leading the House of Representatives to formally impeach him. Although he was impeached, he was subsequently acquitted by the Senate and remained in office.

The significance of Andrew Johnson's impeachment lies in its historical context, as it set a precedent for how impeachment could be utilized as a political tool and the complexities involved in removing a sitting president from office. This event was crucial in shaping the future interpretations of impeachment and its implications within the political landscape.