Stolen cell phone numbers and email addresses that allegedly belong to Democratic lawmakers were published online Friday night by the same Russian government-linked hacker who has taken credit for other cyber attacks on Democratic organizers.

The hacker, who goes by the moniker Guccifer 2.0, published hundreds of phone numbers, email addresses, passwords, and other personal information as part of the latest document dump, which were purportedly stolen as part of a cyber attack on the Democratic Congressional Campaign Committee.

“As you see the U.S. presidential elections are becoming a farce, a big political performance where the voters are far from playing the leading role. Everything is being settled behind the scenes as it was with Bernie Sanders,” the hacker wrote in a blog post accompanying the dump. He also urged readers to “make use” of the information published.

The same hacker claimed responsibility for the attack on the Democratic National Committee, which lead to Rep. Debbie Wasserman Schultz’s (D-FL) resignation as chair.

The FBI is reportedly investigating the DCCC hack. As CNN reported late last month, U.S. officials tried to warn the DNC about a possible cyber intrusion months before staffers acted to contain the threat. U.S. officials have blamed the hack on cyber criminals linked to the Russian government, which has driven speculation about whether Vladimir Putin is acting trying to sway the U.S. election to help Donald Trump’s campaign.