I would humiliate her, sure... then I would sue her for every penny she has.
It would be awfully tempting, understood.
However, I think Donald is actually going to be at least kind of Christian about it. He will most certainly insist on a fair hearing, which is what these slander and libel complaints are leverage to get.
But to me at least it is an intriguing object lesson about how the world has prostituted itself (for free, yet) to evil. Donald is living out a moral lesson almost as good as any prophet could.