The information supports claims that Russian President Vladimir Putin is behind a coordinated effort to influence US elections, as US intelligence has claimed since last year. Talks about a criminal case are in the early stages. The inquiry is being conducted by Robert Mueller, in cooperation with federal prosecutors and agents in Washington, Pittsburgh, San Francisco and Philadelphia, according to the report. The team has identified both military and intelligence hackers.

Russians hacked DNC emails and the account of 2016 Democrat campaign chairman John Podesta, according to insiders. Thousands of those emails were made public by Wikileaks at the time, something that likely impacted voting in the 2016 presidential election. No charges were ever brought against Clinton or any Democrats over the contents of the emails.

Russian President Vladimir Putin ordered an influence campaign in 2016 aimed at the U.S. presidential election.

Trump has called the claims of Russian DNC hacking "a big Dem scam and excuse for losing the election." US intelligence officials, however, have maintained that Russians were indeed behind the hacking. "Russian President Vladimir Putin ordered an influence campaign in 2016 aimed at the U.S. presidential election," it assessed in January.

Mueller's team has already obtained a guilty plea from Trump campaign advisor George Papadopoulos in relation to his Russian dealings, and has filed numerous, serious charges against Trump campaign chairman Paul Manafort and his business associate, Richard Gates.

Facebook recently admitted that a Russian disinformation campaign reached 126 million users during the presidential election with ads that attempted to influence US users by exploiting social and political divisions, among other tactics. Sources say the Russian DNC hacking is not unlike the Yahoo attack, which allowed Russian hackers to steal the information from at least 500 million accounts, among the largest in US history.

It would difficult for the Department of justice to arrest any Russian officials. However, charges would make it nearly impossible for those folks to travel. More importantly, if charges are brought sometime next year, they will no doubt shine a floodlight on a case about which, so far, there has been little information.