...impeached. But, with further research I found the Articles of Impeachment again Richard Nixon and in Article V specifically it names Nixon and the other co-conspirators from his administration:
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Articles of Impeachment against Richard M. Nixon
RESOLVED, That Richard M. Nixon, President of the United States, is impeached for high crimes and misdemeanours, and that the following articles of impeachment to be exhibited to the Senate:
ARTICLES OF IMPEACHMENT EXHIBITED BY THE HOUSE OF REPRESENTATIVES OF THE UNITED STATES OF AMERICA IN THE NAME OF ITSELF AND OF ALL OF THE PEOPLE OF THE UNITED STATES OF AMERICA, AGAINST RICHARD M. NIXON, PRESIDENT OF THE UNITED STATES OF AMERICA, IN MAINTENANCE AND SUPPORT OF ITS IMPEACHMENT AGAINST HIM FOR HIGH CRIMES AND MISDEMEANOURS.
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Article V
In his conduct of the office of President of the United States, Richard M. Nixon, in violation of his constitutional oath faithfully to execute the office of President of the United States and, to the best of his ability, preserve, protect, and defend the Constitution of the United States, and in disregard of his constitutional duty to take care that the laws be faithfully executed, on and subsequent to March 17, 1969, authorized, ordered, and ratified the concealment from the Congress of false and misleading statements concerning the existence, scope and nature of American bombing operations in Cambodia in derogation of the power of the Congress to declare war, to make appropriations and to raise and support armies, and by such conduct warrants impeachment and trial and removal from office.
Specification of Charges (Bill of Particulars)
Supporting All Articles
1. Conspiracy. President Nixon, H. R. Haldeman, John Ehrlichman, Charles Colson, John Dean, John Mitchell, Herbert Kalmbach, and Maurice Stans, in concert with and abetted by others, conspired together to devise and carry out a plan or scheme to commit various crimes against numerous citizens of the United States who opposed the policies of Richard M. Nixon. President Nixon and his co-conspirators thereby conspired to commit burglary in violation of 22 D.C. Code 1801; violated federal statutes making it a crime to wiretap, section 2510 et seq. of the United States Criminal Code (Title 18, U.S.C.); conspired to deprive citizens of civil rights in violation of section 241 of the Criminal Code; conspired to violate other federal statutes (e.g., the wiretap statute) in violation of section 371 of the Criminal Code; violated the President's constitutional duty to take care that the laws be faithfully executed, article 11, section 3; violated the First amendment rights of persons to freedom of speech, and violated the Fourth amendment rights of persons to be secure from unreasonable searches and seizures.
<READ MORE AT>
http://www.impeachpac.org/node/614