The propagandists running Homeland Security were contradicted by the state governments, forcing Homeland Security to retract its fake news claims. https://theintercept.com/2017/09/28/yet-another-major-russia-story-falls-apart-is-skepticism-permissible-yet/
The unasked/unanswered question is why did Homeland Security put out a FAKE NEWS story?
Greenwald explains that the US media is so conditioned by the National Security State to see Russian President Putin lurking behind and masterminding attacks on America that it is "now religious dogma"—a requirement—to find Russian perfidy everywhere. The result Greenwald correctly says is that "an incredibly reckless, anything-goes climate prevails when it comes to claims about Russia. Media outlets will publish literally any official assertion as Truth without the slightest regard for evidentiary standards."