Albert J. Beveridge,
The Life of John Marshall, Volume 3…
“ Chase was not charged with treason, bribery, or corruption. Had any other "high crimes and misdemeanors" been proved or even stated against him? He could not be impeached for ordinary offenses, but only for "high crimes and high misdemeanors." Those were legal and technical terms, "well understood and defined in law.... A misdemeanor or a crime ... is an act committed or omitted, in violation of a public law either forbidding or commanding it. By this test, let the respondent ... stand justified or condemned." ”
