constitutional post-script to underscore the verye important point that mr. deutch is making here. the article one of the constitution gives the house of representatives the sole power of impeachment. it gives the senate the sole power of trial. and a supreme court decision callede united states versus nixon, the supreme court emphasized that the rules and the procedures developed, including the evidentiary rules, are completely within the power of the house and theit senate. andof cannot be second guessed the courts. and in terms of general congressional oversight, the gentleman isl perfectly correc. the supreme court has emphasized that the fact-finding, investigative power of congress isve essential to, integral to, and built into our legislative power. james madison said that those who mean to be -- those who mean to be their- own governors mus arm themselves with the power that knowledge gives. and whereed does congress get t knowledge to legislate for the people? we get it through subpoenas,