https://constitution.congress.gov/browse/essay/artII-S4-4-9/ALDE_00000035/#:~:text=Article%20II%2C%20Section%204%3A,other%20high%20Crimes%20and%20Misdemeanors.
- abuse of power, alleging that he had used the powers of his office to solicit Ukraine’s interference in the 2020 election and had conditioned official acts, such as the release of military aid to Ukraine and a White House visit, on President Zelenskyy agreeing to announce the investigations
- obstruction of the House impeachment investigation by directing the unprecedented, categorical, and indiscriminate defiance of subpoenas issued by the House of Representatives.11 This abuse of office, the article alleged, was subversive of constitutional government and nullif[ied] a vital constitutional safeguard vested solely in the House of Representatives.