An analysis from the Citizens for Ethics and Responsibility in Washington reveals that every impeachment trial completed in the Senate’s 231 year history has featured witnesses who had not testified in the House:
Every impeachment trial completed in the Senate’s 231 year history has featured witnesses who had not testified in the House, according to an analysis published today by Citizens for Responsibility and Ethics in Washington (CREW). In each of the 15 impeachment cases completed by the Senate, witnesses who were not heard during the House of Representatives’ impeachment investigations testified in front of the Senate.
To say new witnesses are not an appropriate part of the Senate trial process is totally contrary to history and precedent given that Senators have called forward as many as 50 witnesses who had not testified in the House in previous impeachment trials, and out of the 15 completed trials, only three had fewer than ten new witnesses.
Every. Last. One.
See CREW’s tabulation of new witnesses in completed U.S. Senate impeachment trials.