AFAIK, the vote to hear from extra witnesses only needed a simple majority. Perhaps you're confusing the two?
That most definitely is not the standard laid out in the constitution.
Um...to have extra witnesses who were not included in the impeachment process on the House's side would have gone against every normal standard used in a trial in the United States. Considering that this was only the 3rd impeachment trial in almost 250 years, it is hard to claim that there is any standard beyond that used in our judicial system.
Upvote
0