You know, there is a meaning behind words people speak, and then there are specific words and sentences. I think you may want to step back and learn the difference, as a person doesn't have to use specific words to mean something. But, just to answer you, read this article:
https://www.cnn.com/2019/12/16/opinions/mitch-mcconnell-trump-senate-impeachment-honig/index.html Pay close attention what it says, specially what Graham is quoted saying. The original comment stated that the Jury has stated they won't have a fair trial... when you have a Jury member (s) specifically state they are not trying to be a fair juror, as well as other comments by McConnel, it pretty much defines an unfair trial. Everything else, and your "show me where he specifically said XYZ" is just semantics.