I would hold off on calling the IG report a whitewash.
I have actually written reports similar to this—although I never worked for an IG.
This IG’s report has plenty of damning details.
But reports like this go through several levels of review, and the recipients of the report usually try to water down conclusions that they consider damaging.
Keep in mind that many of the IG’s findings may have been referred to a federal prosecutor, who has an interest in staying below the radar screen until he is ready to publicly announce indictments.
I can wait on the prosecutions. I am more interested in maintaining Republican majorities in the November elections, and in seeing the Mueller investigation rendered irrelevant.
In my opinion, this I G’s report contributes to that end.