Brilliant use of the anti-KKK law that has been on the books since Reconstruction: Jack Smith will charge Trump and a co-conspirator with violation of this law that forbids attempting to invalidate any voter's legal vote. It does not require success, just the attempt! Everything Trump did trying to overturn the swing states' electoral college votes (and it was a LOT of different things) was an attempt to invalidate 81 million legal votes. It's like the largest class action charge ever. 81 million victims.
Of course that's just the initial indictment. Many people are going to end up being added as co-conspirators.