Since Clinton has shot her proverbial wad and has nothing left to accuse Trump with, and Trump still hasn’t taken his second gun out of the holster, my advice to Trump is to pivot to issues and let Clinton act like the crazed loon.
I would go with something like, “It’s the last debate Chris and Hillary still wants to level personal attacks at me. This is testament to her bad judgement as she doesn’t know how to move on, especially when the country needs leadership at this trying time and all she wants to do is play name calling games.”
“Since Clinton has shot her proverbial wad and has nothing left to accuse Trump with,”
I don’t even put a complete fabrication of such an event beyond the Clintons. They could find someone he’s never seen and Photoshop a picture (and certainly they can afford someone good enough to escape it being easily detected), and there’s your “evidence.”
That’s what could happen, and what she’d likely say if it did. Trump needs to be prepared for that...and the fallout in the Republican Party.