Investigate and alter the law or regulations around elections if necessary. I can't help but feel this is a non story as I thought Russian interference usually resulted in their desired outcome?
Also, I'm happy to believe this story that it actually did happen and it actually is an issue, the only thing I wont accept is if it's in the news for more than 3 days. Pretty sure the Cambridge analytica tory scandal and brexit campaign Russian interference are far more important issues than a failed attempt to get elected. If this is plastered across the news for the next two weeks I fear I'll resort to assuming it's all just a smear.
You may be right, but the web site worldbeyondwar.org has many interesting stories to read, I recommend it!