I dont think any one is really disputing the gist of this statement, but the bolded part is what I think is causing an issue. I think they tried to impact the election (why wouldnt they when we do it to other countries we have an interest in), but I do not think they succeeding in changing any outcome, and the intelligence people also seems to agree on this point. If the results of the election were not changed, what impact did the Russians really have on it then?