Do you write fairy tales for a living? The IG report will drop as close to summer as possible. The beltway GOP will huff and puff for a couple weeks. Throw some red meat to the base. Then go on summer vacation. Nothing will happen. Sorry.
IG Horowitz doesn’t have a rep as an anal Mueller type.
The GOP has been infiltrated (and yes, that's the right word) for decades. It was and remains part of the plan. This is why they fail us.
If you doubt this, just remember that a duly elected President is currently under a coup attempt that involves people within his own party, a significant number of people within the intelligence agencies, and that Mueller and Rosenstein have characterized themselves as ‘Republicans’. This is all just the tip of the ice berg. If the country is to be saved, it is going to take 10,000 more Trumps (outsiders not under the control of the system), systemically eradicating the vermin at all levels of government.
Speculating on the future is nothing but that. Most of us do not follow the palm readers. The Obama Clinton crime families and their DNC judges, lawyers, and allies are running the show. Helping the DNC by attacking their opponents is not helping Trump.