I identify as a fiscal conservative and social liberal.
The investigation has not wrapped up yet, so I think it's premature to say that a lack of evidence at this point implies there is NO EVIDENCE whatsover.
The reporting is that Flynn is fully cooperating, Rick Gates fully cooperating, Cohen fully cooperating, those dudes at the National Enquirer are fully cooperating.
There is already evidence that Manfort provided Konstantin Kilimnik with 2016 election polling data. That would be a Trump campaign chair sharing election data with a foreign adversary. Sure sounds like conspiracy or collusion or whatever.
So if someone has been doing criminal shit for the last 10 years, that person is suddenly OK in your book? You wouldn't be the slightest bit dubious that perhaps their criminal tendencies would continue into the presidential campaign? Maybe his criminal 'experience' is the reason WHY he was chosen to run the campaign?
Would you hire someone who has been accused of raping people for 10 years to babysit your kids?
Here is evidence of a financial relationship:
https://www.reuters.com/investigates/special-report/usa-trump-property/
It's also widely reported that Don Jr. Said the following during a 2008 Moscow Real-estate event where he was a keynote speaker: