Chief Justice of the Philippines
Maria Lourdes Sereno was removed on May 11, 2018 via quo warranto by a special en banc session; the petition alleged Sereno's appointment was void ab initio due to her failure in complying with the requirements of the Judicial and Bar Council. Hence her entire term as Chief Justice is considered a de facto tenure; legally void since the ouster of her predecessor. Sereno filed an ad cautelam motion for reconsideration pleading for the reversal of the decision on May 31, 2018, but on June 19, 2018 was denied with finality (meaning no further pleading shall be entertained, as well as for the immediate entry for judgment) for lack of merit.