“History shows that both Donald Trump and his son spent more than a decade cultivating relationships with Russian businessmen and oligarchs.” And your point here is? There is nothing wrong with having business dealings with Russians.
You’ve seen Oliver Stone’s interview of Putin? In it Putin says that a new candidate such as Trump (not naming him) knows little if anything about the Presidential position. He went on to say that his (Russia’s) policy in not to meddle in other countries’ politics. That was long before the election.