Commission on Elections Chairman Andres D. Bautista had filed a resignation on October 11, 2017 but with effectivity date on December 31, 2017. But due to not stating immediate effectivity of the resignation, on the same day, the House of Representatives still voted to impeach the poll chief with 137 votes (more than 1/3 votes) from the House, overturning a justice committee resolution that earlier dismissed the complaint against him. Bautista eventually made his resignation effective later in the month, before the Senate convened as an impeachment court.