I don't even think they thought they were going to get him elected. That was maybe something they wanted, but I think either way with their disinformation campaign and just Trump being Trump they'd have managed to sow divisions in the populace and leave President Hillary damaged and weakened. I can't see Trump conceding that he lost that election, he'd have been yelling about how it was stolen and as we've seen, about 35% of people would believe him. They're not going to stop any time soon, no matter who gets to be in charge, because a divided US with embattled leaders is less of a threat to thwart Russia's ambitions, whatever those may be.
I do think Russia has some kind of leverage on Trump, purely because he's been so unbelievably eager to shit on everyone and everything in the world except for Vladimir Putin. It's really conspicuous that he's so deferential to Putin. With almost every other country, it's all about how they're so unfair to us and we do too much for them or how we're gonna kick their ass, economically or militarily. Not Vlad, though. It's fishy.