Which constitution action starts with process by which a president is removed from office

The constitutional action that starts the process by which a president is removed from office is the impeachment.

Explanation:

The impeachment is a procedure allowing the legislative power to dismiss a high rank official. The accused may be a senior government official, which includes the president and his vice-president, cabinet members (secretaries) and federal judges. The purpose of impeachment is to allow for the removal of officials from office.

The procedure has three stages:

-the investigation, generally conducted by the Judicial Committee of the United States House of Representatives;

-impeachment, which must be voted on by the House of Representatives by a simple majority (like a law);

-the impeachment trial, which is held before the United States Senate, chaired by the Vice President, or by the President of the Supreme Court if the President is tried; the guilty decision can only be acquired by a two-thirds majority.