Did you hear her testimony   

If you did you would know that it would not be allowed in a court of law, because it was all hearsay!

"Hearsay" may be admissable in specific circumstances. 

And the people she claims to have heard, says she is lying!  No one involved is backing her story.

Her testimony was to the points that certain people were aware of the January 6 riot.

I believe there was also testimony that indicated a conspiracy before the Jan 6 riot, statements that Giuliani made. Why would he substantiate his otherwise unwitnessed statement?