The Russians have been attempting to influence the presidential election results for decades.
The Russians were not trying to influence who won. The Russians goal was to sow divide in the U.S. to destabilize it. Mission accomplished.
What should be upsetting the citizens of the United States is that the DNC is literally saying "Citizens - you're all stupid. How could you not vote for our candidate. "Didn't you watch the election watch programs on CNN and MSN? The news anchors were dumbfounded.
So, rather than picking themselves up by the bootstraps and coming up with a strategy for the 2020 election, the DNC decides to say "There's no way the American people would have voted for Trump over Hillary. It must be some sort of voter fraud!" Then, from that point forward, the DNC and mass media have gone on a campaign to de-legitimize the Trump presidency.
It's because of this that Trump is all but assured getting re-elected in 2020. If your party is calling the will of the people illegitimate and looks down their noses at the masses you are done.