Trump’s longtime political adviser Roger Stone admitted being in touch with Guccifer over Twitter’s direct messaging service. And in August 2016, Stone published an article on the pro-Trump-friendly Breitbart News calling on his political opponents to “Stop Blaming Russia” for the hack. “I have some news for Hillary and Democrats—I think I’ve got the real culprit,” he wrote. “It doesn’t seem to be the Russians that hacked the DNC, but instead a hacker who goes by the name of Guccifer 2.0.”

Five months later, in January 2017, the CIA, NSA, and FBI assessed “with high confidence” that “Russian military intelligence (General Staff Main Intelligence Directorate or GRU) used the Guccifer 2.0 persona and DCLeaks.com to release US victim data.” But the assessment did not directly call Guccifer a Russian intelligence officer. Nor did it provide any evidence for its assertions.

It turns out there is a powerful reason to connect Guccifer to the GRU.