The hacking was of the DNC, the Democratic Congressional Campaign Committee and Hillary Clinton's presidential campaign, including its chairman, John Podesta.
Prosecutors say that in August 2016, a US congressional candidate requested and received from stolen documents related to an opponent from an online persona created by the Russian cabal.
Computer records related to at least 500,000 voters were stolen, but no evidence has emerged that the election itself was compromised or that the result was affected.
One group of officers were tasked with infiltrating computers and stealing data, while another worked to distribute it through anonymous channels in the U.S.
"As Deputy Attorney General Rod Rosenstein said today, there is no allegation in this indictment that Americans knew that they were corresponding with Russians.There is no allegation in this indictment that any American citizen committed a crime".
"I will absolutely, firmly ask the question, and hopefully we'll have a good relationship with Russian Federation", he told a joint press conference with British Prime Minister Theresa May. "We need to work together to hold the perpetrators accountable, and keep moving forward to preserve our values, protect against future interference, and defend America", Mr. Rosenstein said.
"The indictments Rod Rosenstein announced are good news for all Americans". Given that we are mere months away from a massively important state and local midterm election, you'd think people would be more concerned about protecting us from the continuing threat of Russian interference.
Using the name "Guccifer 2.0", the Russians told Trump associate Roger Stone ― identified in the indictment as "a person who was in regular contact with senior members of the presidential campaign of Donald J. Trump" ― that it would be their "great pleasure" to help.
The Russian hackers were allegedly working for two units of the GRU.
Meghan rocks two very different looks as she continues Ireland tour
The royal couple happily greeted and bestowed the highest honor a dog can get in the way of scratching and patting the happy dogs. Finally, to meet the Irish President Michael Higgins , Markle donned a taupe Roland Mouret dress with a draped folding skirt.
Rosenstein said the latest indictment did not include any allegation that Russian Federation was successful in their efforts to influence election outcomes.
Similarly, Sen. Mark Warner, the top Democrat on the Senate Intelligence Committee, said Trump should cancel the meeting and that it should not be in a one-on-one setting.
First, that it appears to have been unimpeded by continual charges from President Trump and others that it is an illegitimate, partisan "witch hunt".
Because Mueller has maintained public silence on his investigation, Rosenstein has made the few public pronouncements on the probe outside of legal documents and courtroom proceedings.
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The deputy attorney general said all 12 of the defendants were military officers in the Russian intelligence service, the GRU.
The special counsel investigation has produced more than 100 criminal counts against 32 people and three companies, according to a count from The New York Times. Pure stupidity. But it makes it very hard to do something with Russian Federation.