Final answer:
Section 4 mandates the removal of the President, Vice President, and civil officers for 'high Crimes and Misdemeanors' through impeachment, requiring actions by both the House and Senate.
Step-by-step explanation:
According to Section 4, the President, Vice President, and all civil officers shall be removed from office for high Crimes and Misdemeanors. This process is called impeachment, which is a formal charge of wrongdoing, and requires two steps involving both chambers of Congress. First, the House of Representatives must impeach the official by a simple majority. Following that, the Senate can remove the official from office by a two-thirds majority, with the trial overseen by the chief justice of the Supreme Court. Treason and bribery are explicitly listed as impeachable offenses, but the somewhat broader category of 'high crimes and misdemeanors' is also included to cover other serious misconduct.