Källor: Mueller frågar om Trumps direkta inblandning

The 2016 Democratic National Committee email leak is a collection of Democratic National Committee (DNC) emails stolen by Russian intelligence agency hackers and subsequently published (leaked) by DCLeaks in June and July 2016 and by WikiLeaks on July 22, 2016. This collection included 19,252 emails and 8,034 attachments from the DNC, the governing body of the United States' Democratic Party. The leak includes emails from seven key DNC staff members, and date from January 2015 to May 2016. The leaked contents, which suggested the party's leadership had worked to sabotage Bernie Sanders' presidential campaign, prompted the resignation of DNC chair Debbie Wasserman Schultz before the Democratic National Convention. After the convention, DNC CEO Amy Dacey, CFO Brad Marshall, and Communications Director Luis Miranda also resigned in the wake of the controversy. WikiLeaks did not reveal its source. A self-styled hacker going by the moniker Guccifer 2.0 claimed responsibility for the attack. On July 25, 2016, the FBI announced that it would investigate the hack. The same day, the DNC issued a formal apology to Bernie Sanders and his supporters, stating, "On behalf of everyone at the DNC, we want to offer a deep and sincere apology to Senator Sanders, his supporters, and the entire Democratic Party for the inexcusable remarks made over email," and that the emails did not reflect the DNC's "steadfast commitment to neutrality during the nominating process." On November 6, 2016, WikiLeaks released a second batch of DNC emails, adding 8,263 emails to its collection. On December 9, 2016, the CIA told U.S. legislators that the U.S. Intelligence Community concluded Russia conducted operations during the 2016 U.S. election to prevent Hillary Clinton from winning the presidency. Multiple U.S intelligence agencies concluded people with direct ties to the Kremlin gave WikiLeaks hacked emails from the Democratic National Committee. In June 2017, former Secretary of Homeland Security Jeh Johnson, who was appointed by and served under President Barack Obama, testified before a House Select committee that his department offered their assistance to the DNC during the campaign to determine what happened to their server, but said his efforts were "rebuffed".