1. The US has meddled (what a nebulous word) in other countries' elections, doing everything from endorsing candidates to installing dictators to toppling regimes.
2. CNN, a trash cable network, tries to play #bothsides. You'd be naive to think they wouldn't purposely design a segment for Russia skeptics/downplayers so they could say, "See, we're not the liberal media." They value ratings and profit more than anything else. Trump's disparagement of them hasn't made them not trash.
Statements 1 and 2 can both be true.
News should be factual but also timely and relevant. Yes, the US has interfered in other countries' elections; check any textbook. But what is the point of running this story, especially when we've all but determined that a hostile foreign power tried to sway our election and may very well have installed a moronic Manchurian Candidate? In this atmosphere, running such a story can be construed as saying, "We did it too, so what's the big deal?" - thereby undermining the gravity of having our electoral sovereignty encroached upon. Our past actions, while questionable and even reprehensible, have no bearing on the current crisis, which should be handled and prosecuted according to the laws of this country, not according to some evasive "but what about" standard that implies somehow that we "deserved" this attack. This story fails to meet the "relevant" and "current" criteria for news, especially since CNN just lifted it from an academic paper or something. Moreover, genuine news seeks to inform, not merely to equivocate so as to draw "conservative" viewers and satisfy #bothsides.
Of course, the preceding paragraph bases its premises on CNN's being classified as news. I classify it as trash cable punditry that steals its "news" from legitimate outlets and then has stupid people comment on them.
They wanted you to watch. They wanted you to talk about them. You fell for the trick. Start reading the Times and the Post and the Wall Street Journal and the Associated Press and stop watching trash cable.