维基文库中的文獻全文:Article ofImpeachment against Donald J. Trump (2021) Trial Memorandum of the United States House of Representatives in the ImpeachmentTrialof President
Legal Scholars for Impeachment. Historians and Constitutional Scholars’ Statement on the Second Impeachmentof President DonaldTrump. Medium. 2021-01-11
Not the State of the Country. 2020-01-31 [2020-07-17]. (原始内容存档于2020-11-19). 75% Of Voters Say Allow Witnesses In Senate ImpeachmentTrial, Quinnipiac University