Am I missing something here?  It is alleged that Russia meddled in US politics in some way, is that surprising?  Is it somehow unexpected?  Should we all be shocked by such a 'stunning' revelation?   
Consider that the US routinely meddles (or worse) in other nation's politics, and evidently believes it has every right to do so.  In some instances, interventions have gone well past the 'meddling' stage of things (think exploding Cuban cigars).   So, is this sort of behavior exceptional in any way?  Britain certainly has been involved in its share of clandestine interventions (think 007),  France has inspired/supported or even driven revolutions in most if not all of its colonies or protectorates at one time or other, and continues to do so in subtle underhanded ways (think Madagascar, Mali, Burkina Faso, French Congo just for starters).  
Now we have yappy Democrats in the USA accusing the Russians of doing naughty things, goodness, how could those commies dare to do such a thing?