1. Impeachment of a President is not the process of undoing a previous election. It is the process whereby Congress indicts a President for wrongdoing while in office.
The drafters of the impeachment clause said so.
Madison was worried about the perfidy of a President, or deceit. He worried a President would wrongly work with a foreign power.
Edmund Randolph was concerned a President would seek to profit from the office, would seek emoluments from the presidency.
George Mason was concerned a President would undermine an investigation into himself, or might interfere with the work and duty of electors.
Trump confessed to impeachable activity through release of the call notes.
Mulvaney corroborated it with his presser.
Bill Taylor confirmed it factually.
Lt. Col. Vindman contextualized it all as undermining US national security.