From the Wall Street Journal:

The hacking spree that upended the presidential election wasn’t limited to Democratic National Committee memos and Clinton-aide emails posted on websites. The hacker also privately sent Democratic voter-turnout analyses to a Republican political operative in Florida named Aaron Nevins.

Learning that hacker “Guccifer 2.0” had tapped into a Democratic committee that helps House candidates, Mr. Nevins wrote to the hacker to say: “Feel free to send any Florida based information.”

Ten days later, Mr. Nevins received 2.5 gigabytes of Democratic Congressional Campaign Committee documents, some of which he posted on a blog called HelloFLA.com that he ran using a pseudonym.

Soon after, the hacker sent a link to the blog article to Roger Stone, a longtime informal adviser to then-candidate Donald Trump, along with Mr. Nevins’ analysis of the hacked data.

Mr. Nevins confirmed his exchanges after The Wall Street Journal identified him first as the operator of the HelloFLA blog and then as the recipient of the stolen DCCC data. The Journal also reviewed copies of exchanges between the hacker and Mr. Nevins. That the obscure blog had received hacked Democratic documents was previously known, but not the extent of the trove or the blogger’s identity.

More here.