I don't know that she broke any law, but it adds to the ethical issues with team Obama and to some degree legitimizes Trumps assertions that that administration was up to something. There are a lot of words being used, "incidental", "unmasked" etc. All this is for a reason. Even if their intent was completely sinister, they could work the loopholes. This is why lawyers become such "great" politicians. They can play the game.
She probably crossed her "t's" and Dotted her "i's", the question will always be INTENT. That's gonna be hard to prove any law was broken in a courtroom. Was their intent to spy on Trump? Probably, will anyone get in trouble for it, not likely. Just all a big circus. If they can prove she did this for POLITICAL purpose, she is boned.
It will be interesting to see how it plays out. All I know for sure is Susan Rice is a piece of crap. She has been the fall guy for past Obama/Clinton shenanigans. I think what it is going to do is raise a flag that she needs to be investigated but in my honest opinion both sides of the Russia, wiretapping thing is a huge pissing match. I honestly believe if Trump team was working with Russians to beat Hillary it would have come out by now.
The fact the MSM is utterly silent on this, tells you its something.