It is funny that the ones accusing Russia are the same who were in Maidan Square, haranguing the crowds to revolt against Yanukovich ( the democratically elected president ). So meddling is good in one direction and wrong in the other?
Or, more likely, to counter one propaganda you are just parroting another piece of propaganda.
Geopolitical inevitabilities aside, though, there is plenty of evidence for both the US and Russian governments' manipulations of other countries' elections.