Q: Did the Russians want Donald Trump to win?
Also remember that DNC/Hillary campaign got caught paying for far more trolls, astro-turfers, and even paid thugs to violently assault Trump supporters at his rally's. The Democrats went much further than the Russians. So if we should arrest anyone that did that, we should start with the DNC/Hillary campaign.
If Russia was spending most of their money supporting DNC causes, how can you conclude they supported Trump? The Democrats answer is that they have imaginary Kompromat (compromising material) on Trump that makes him their pawn. But if they did why would they want him making America stronger, more constitutionalist, antagonizing Europe into increasing their defense spending, putting sanctions on them, killing Russian mercenaries in Syria, and improving America's economy? If Hillary was elected, she was proven to be easy to manipulate, and would have left the status quo (which played to their advantage).
- Hillary was more bribable and blackmail-able , got Russians access to American Uranium deposits 
- Trump is the stronger negotiator, larger and more masculine (Putin is into imagery), he had hawkish/strong, and made anti-Russia statements and picks like Mattis and Bolton.
The only reason they might have wanted to attack Hillary was retaliation since she, Obama and the Democrats had interfered with the Russia and many other countries elections first, but the media has mostly avoided covering that angle in this scandal because it cedes the non-existent moral high ground.
Russia seems to have done what they've always done, which is spin things on RT, fund a few far left outlets, do a few ad buys (under a false flag), troll, and basically magnify the far-left's message. Any dirt that comes out against the forerunner, helps inject moral ambiguity or futile-ism into the public (if they win). A small part of Russian trolling was against the front-runner (Hillary), but even less was aligned with Trump than with the DNC. Thus any trashing of Hillary, is hardly proof they wanted Trump to win: it's more proof they couldn't read the polls any better than Democrats did. And that's nothing new, and nothing different was done this election than any other -- or than we do to their and other elections.
- Bribable: https://theintercept.com/2016/08/25/why-did-the-saudi-regime-and-other-gulf-tyrannies-donate-millions-to-the-clinton-foundation/
- Uranium: https://www.nytimes.com/2015/04/24/us/cash-flowed-to-clinton-foundation-as-russians-pressed-for-control-of-uranium-company.html?_r=0
- Election Tampering: