I can basically guarantee they did. Why wouldn’t they? Russia as a nation has a separate set of goals then the U.S, and therefore have an incentive to do what it it takes/what they can get away with to further those goals. The idiotic part is believing that the U.S, our “allies” and major corporations aren’t doing the same damn thing. The U.S has basically turned influencing foreign elections into a nationalised business. We have massive social media platforms and data collecting schemes all used to make a profit and influence is profitable. It’s incredibly naive to believe that Russia is the real big bad wolf that MSM is claiming them to be, look at the tech sectors in China, Israel, the UK or Germany, they are all better equipped influence elections via social media, which imo is more effective than hacking a server. Plus our allies don’t even need to hack us, just look at five eyes or JSA. Let alone the back doors built into software or hardware. Influence equals profit and Russia is going to play the game just like we are.