Yes, she has been an ambassador for several presidents, yes, she has been in some somewhat sketchy countries. Yes, being fired was likely devastating.
At the end of it all, any ambassador serves at the pleasure of the President of the United States. Period. Said President can fire any ambassador for any reason.
So, besides, “Trump Hurt my Feelings” what testimony did she give?
Why did they waste our time (and money) with her testimony?