We generally take our sanctions against Iran pretty seriously, and from what I've read it sounds like she was pretty blatantly involved in working around them.
That warrant was out for a long time, which isn't something I'd really expect out of something for this trade war.
I'd generally like to think that most of the US government is still above actions like that.
I could be wrong of course, in which case I'd probably agree that we shouldn't be doing this, I just think the evidence weighs in the other direction. (And yes, I'm aware of what the madman in charge has said).