According to a former CIA boss, Russia has been interfering in the US democratic process in various ways since the beginning of the Cold War. The recent US Intelligence assessment was that Russia probably tried to hack various US democratic institutions during the time of the last US election campaign. US Intelligence also accused the RT news network of propaganda "meddling" in the US election campaign by running stories making America look bad and its democracy look corrupt. 

I just read something I had bookmarked about a year ago. Back then, the Kremlin was saying they have attempted hacking, phishing and malware attacks against Russian govt information systems on a daily basis and many of these attacks originate in USA. The Russians also accuse USA of meddling in their elections through propaganda and financing opposition parties and NGO's. The Russians say all post-Soviet republics have been targeted by USA for election meddling.