The security on Clinton's server gave the Russians total access to state secrets and thus made Hillary Clinton totally subject to blackmail.
Who in the hell do you think the Russians wanted to win? It was not Trump.
I suspect when the Wisconsin, Michigan, and Pennsylvania vote came in Putin said, "Вот дерьмо" 200 million wasted on that idiot woman."
The Russians did interfer in our campaign. They interfered by allowing many millions of dollars to go the the Clinton Foundation and the Clinton's themselves.
We got lucky. Putin's prefered candidate lost!
It might be that, like a lot of American corporations do, Putin bet on both sides, so that whoever won he could say that he had been a friend.
Trump is better for Putin than Hillary would be. She was rattling sabres just for the sake of rattling them.