As I've written before, the publicly available information portrays an intricate dance in which the Russians and Trump campaign seem to have reached an understanding that led to a quid pro quo of sorts.
We have the Russians via the "adoption lawyer" and "Maltese professor" reaching out to see if the Trump campaign was interested in any dirt they could provide on Hillary. The Trump campaign seems to have encouraged various parties to travel to Moscow, Budapest and Athens to explore the terms of any quid pro quo.
Some interesting questions remain to be answered.
Was Peter W Smith acting as a cutout for the Trump campaign. Were there other cutouts. People like Flynn, Bannon and Clovis are in a position to answer these questions.
Did Manafort or others acting on behalf of the campaign arrange for payments to the hackers, possibly via shell companies. Rick Gates potentially could provide some information on this matter.
Did Cambridge Analytica share data on voter targeting with the Russians? I imagine if this happened, it will in due course be discovered.
The above pertain directly to the issue of whether there was a conspiracy between the campaign and the Russians.
There are two other matters that I believe are an even greater danger to Trump: financial ties with Russians or Russian controlled entities that pre-date the campaign and that likely entail criminal activity and financial dependency on those entities, and secondly, an attempt to obstruct the investigation by asking Comey to drop the matter and then firing him when he failed to drop the investigation.