Everything they were doing was against candidate Trump and President Trump. The spy revelation is new. All the other coup d’etat / subversion / sedition / and treason remains whether there was a spy or not. The spy enhances the solidity of the evidence, no doubt. But there is, IMO, more than enough evidence to bring them to justice and find them guilty without the spy.
"Spies" are an easy construct for citizens to understand... all of us have dealt with two faced liars at some point in our lives... All this has to be washed out in public...