If there is nothing wrong regarding Russia, I don't know why Trump is so focused on it.
He keeps on shoving the issue into the limelight.  The starting gun for stories on the issue tend to be his tweets.
Certainly, there is news of things his campaign people did, news about what his family did, news about a Grand Jury, and news about what Congress is doing.  But Trump pours fuel on the fire as to each of those stories every time.
Why?
If the stories are wrong, if the stories are over irrelevant things, why address them?
The obvious problem is that the stories lean decidedly toward there BEING SOMETHING or MANY THINGS WRONG.
Trump and his machine has been caught in many lies.  Vis a vis Russia, the word coming out as the investigation was beginning was, "NO ONE HAD ANY CONTACT WITH RUSSIANS".  Wrong.
The Don Jr./Russian mission meeting, the emails, and new revelations about Trump's directly attempt to mislead about the meeting is really bad.
Trump needs to just shut up about Russia. .