For me, this proves that the Democratic party should have placed the full blame for the 2016 loss on Clinton and Obama. And cleaned their own house. And they should have found some coherent focus for future elections. And they should have invested time to analyze why people (including white people) do not trust them.
Instead, they chased shadows.
Unfortunately, "the Russians" was a smoking screen to exonerate Clinton and Obama. Don't forget that the "meddling into the elections" happened during the Obama years. The US has a full array of security services and the largest security budget in the world. If those agencies couldn't protect the democracy in 2016, then Obama and his administration should get the full blame for that. Either way, this mess is on Obama and Hillary and the Dems as a whole (and of course, actually the main blame is on those who did not vote for Hillary!... it is complicated, I know!) .