JessieRosie: I guess my question is, is it best to try to avoid any verbal aggression that she postures? For example, if she says to me "Don't you think my partner is a misogynist?" Do I say what is true - which is 'no' or do I avoid any answer thus not giving her an excuse to build on the aggression?

A few days have passed since you posted -- perhaps your friend is no longer in the same space. Nonetheless, I would say that the place to begin from is the space that she is in. In this case for example, should she ask, 'Do you think my partner is a misogynist?" an appropriate response might be, "Do you feel he is?" and then encourage her to talk about why she feels that he is or isn't.

Bear in mind that her experience of her relationship with her partner will be different from your relationship to him. She may experience him as a misogynist even if he isn't one so this is where you need to begin -- from her experience of reality.