That's an amusing bit of wishful thinking Mook has on display at The Guardian website; I ran Clinton's campaign, and I fear Russia is meddling with more than elections.
He ran Hillary's campaign. Hillary lost. But she didn't lose because he ran an uninspired and comically inept campaign. No, she lost on account of "meddling" by those dastardly Ruskies!
Mook then spends his first three paragraphs assuring us that speculation about that meddling must be true because US intelligence agencies have said so. What, not those same intelligence agencies who have lied to the American public constantly over the past fifty years...
But now they're telling the truth? Please, Mr. Mook; how stunned do you imagine the US public to be?
Then we get to this howler;
With his success in the US last year, Putin has put opponents on notice that there will be a price to pay for crossing him. Indeed, the complex infrastructure that Russia built to infect public discourse with false or stolen information isn't going anywhere.
That sure sounds ominous, at least until you click on the embedded link and get the down-low on Putin's "complex infrastructure" of deception, and find yourself at Buzzfeed reading about a few dozen bored teens in Macedonia!
Be afraid! Be very afraid... Putin's Macedonian teenage army could be "unleashed at any time, on any issue, foreign or domestic."
Then we get the usual unproven speculation about Russia's upcoming invasion of the Baltic states, Trump's dependence on Russian oligarchs for funding, and so forth. What we have here is a typical disinformation piece, devoid of actual proven facts and brim full of fantasy.
This story bears all the hallmarks of "fake news!"