"H. Res. 660 (EH) - Directing certain committees to continue their ongoing investigations as part of the existing House of Representatives inquiry into whether sufficient grounds exist for the House of Representatives to exercise its Constitutional power to impeach Donald John Trump, President of the United States of America, and for other purposes."
December 10, 2019 introduced in House by Jerrold Nadler. Article I: Abuse of Power, "Using the powers of his high office, President Trump solicited the interference of a foreign government, Ukraine, in the 2020 United States Presidential election." Article II: Obstruction of Congress "...President Trump directed Executive Branch agencies, offices, and officials not to comply with those subpoenas."
Article II, Section 4 of the U.S. Constitution states that "The President, Vice-President, and all Civil Officers of the United States, shall be removed from Office on Impeachment for and Conviction of, Treason, Bribery, and other high Crimes and Misdemeanors."
CASE Documents, Level 1 Y 4.J 89/1:105/63
"hearing before the Subcommittee on the Constitution of the Committee on the Judiciary, House of Representatives, One Hundred Fifth Congress, second session, November 9, 1998"
Prepared Pursuant To Senate Resolution 439, 99th Congress, 2d Session (1986). Separate sections discuss Constitutional provisions; Senate rules; sequence of events; precedents and practices; and sequence of events when closing the trial.
"Do you solemnly swear that in all things appertaining to the trial of the impeachment of William Jefferson Clinton, President of the United States, now pending, you will do impartial justice according to the Constitution and laws, so help you God?"