1984.
They could say anything. The only to resolve this is to disclose the entire document unredacted. Or, at the very least, have someone with clearly conflicting interests (think Democrats) read it.
Personally I think Trump has had some shady dealings with Russians. And Russians might have helped Trump in some (probably very limited) way. But even those two things don't necessarily mean they colluded.
None of it really matters anyway, because if Americans would vote for this guy again in 2020, all hope is lost for the US anyway. And that goes quite a bit further than whether or not the Donald colluded.