Trump will fight fire with fire. The more they dump on him, the more he will expose on the Clintons.
It is going to be an all-out war.
The big thing though is that Trump proved he is for real last night and he is anti-establishment. The GOP tried to have a coup and manufactured a controversy over the first tape by saying "oh all these people remove their endorsements of Trump" but Trump powered through anyways and doesn't care. That followed by him attacking the Clintons during the debate, especially Bill during the first part, proves a lot about where he stands.
This is going to be a constant fight until November 8th. I'm expecting Clinton to win, however it won't be because real people voted for her.