Gerhardt offers a general explanation of the federal impeachment process and relates it to the impeachment of Pres Bill Clinton. The first feature of the constitutional allocation of power for impeachment and removal is that it facilitates and rewards a pragmatic or flexible analysis and impedes a formalistic analysis of the fundamental question at the core of Pres Clinton's impeachment proceedings--whether his conduct constituted a "high Crime or Misdemeanor."
Michael J. Gerhardt,
The Special Constitutional Structure of the Federal Impeachment Process,
63 Law and Contemporary Problems
Available at: https://scholarship.law.duke.edu/lcp/vol63/iss1/11