well the democrats hated trump and apparently they knew who to trust inside the DOJ The Clinton and Obama staff would never have had a Trump sympathizer and McCain’s people hated trump for defining hero as one who doesn’t get shot down in a war.
Problem is the GOP doesn’t like POTUS any more than the Dems do. All the professional politicans hate him for making them look like fools and exposing their confidence trick.
Actually, I wonder why someone on the Hillary/DOJ side didn't leak the fact of the investigation to the media.
No one knew the campaign was under investigation until after the election.