Rock and a Hard Place

So... I've been dealing with some major drama with Sage's Preschool. Today it really hit the point that I'm not sure if i can deal with this anymore. The main teacher has been spreading lies and starting arguments with parent's and the other teacher's in front of the kids. She's even starting to take it out on the kids. I've been toying with the idea of pulling Sage out of school just so he isn't exposed to this awful behavior. What would you do???