So about the rule 23 thing

[dsc]

I thought I remembered that the articles in that impeachment were compound, and boy were they. The reason that both Lewinski and Jordan were among the witnesses. He was accused of trying to influence both of them to give false testimony and about, it should be noted, different issues on different days. So this is exactly and precisely what he claims rule 23 bans.

https://www.congress.gov/105/bills/hres611/BILLS-105hres611enr.pdf