Guccifer 2.0 was an officer of the GRU and Mueller has taken over that investigation:

EXCLUSIVE: ‘Lone DNC Hacker’ Guccifer 2.0 Slipped Up and Revealed He Was a Russian Intelligence Officer

Robert Mueller’s team has taken over the investigation of Guccifer 2.0, who communicated with (and was defended by) longtime Trump adviser Roger Stone.

By Spencer Ackerman & Kevin Poulsen @ DailyBeast.com, 03.22.18 7:00 PM ET

Guccifer 2.0, the “lone hacker” who took credit for providing WikiLeaks with stolen emails from the Democratic National Committee, was in fact an officer of Russia’s military intelligence directorate (GRU), The Daily Beast has learned. It’s an attribution that resulted from a fleeting but critical slip-up in GRU tradecraft.

That forensic determination has substantial implications for the criminal probe into potential collusion between President Donald Trump and Russia. The Daily Beast has learned that the special counsel in that investigation, Robert Mueller, has taken over the probe into Guccifer and brought the FBI agents who worked to track the persona onto his team.

While it’s unclear what Mueller plans to do with Guccifer [....]

NYTimes has the main things Nader and Broidy wanted from Trump:

A cooperating witness in the special counsel investigation worked for more than a year to turn a top Trump fund-raiser into an instrument of influence at the White House for the rulers of Saudi Arabia and the United Arab Emirates, according to interviews and previously undisclosed documents.

Hundreds of pages of correspondence between the two men reveal an active effort to cultivate President Trump on behalf of the two oil-rich Arab monarchies, both close American allies.

High on the agenda of the two men — George Nader, a political adviser to the de facto ruler of the U.A.E., and Elliott Broidy, the deputy finance chairman of the Republican National Committee — was pushing the White House to remove Secretary of State Rex W. Tillerson, backing confrontational approaches to Iran and Qatar and repeatedly pressing the president to meet privately outside the White House with the leader of the U.A.E.[....]

@ How 2 Gulf Monarchies Sought to Influence the White House

By DAVID D. KIRKPATRICK and MARK MAZZETTI, MARCH 21, 2018

Someone's leaking content from Papadopoulos docs with Mueller to WaPo: 

Trump officials encouraged George Papadopoulos’s foreign outreach, documents show

President Trump dismissed the young foreign policy adviser as a “low level volunteer,” but emails show he had more extensive contact with key campaign figures than previously known.

• By Rosalind S. Helderman and Tom Hamburger
• 1 hour ago

[....] Emails described to The Washington Post, which are among thousands of documents turned over to investigators examining Russia’s interference in the 2016 campaign, show Papadopoulos had more extensive contact with key Trump campaign and presidential transition officials than has been publicly acknowledged.

Among those who communicated with Papadopoulos were senior campaign figures such as chief executive Stephen K. Bannon and adviser Michael Flynn, who corresponded with him about his efforts to broker ties between Trump and top foreign officials, the emails show [.....]

JOSHUA KUSHNER MET WITH GOVERNMENT OF QATAR TO DISCUSS FINANCING IN THE SAME WEEK FATHER CHARLES KUSHNER DID

By Clayton Swisher & Ryan Grim @ TheIntercept.com, March 23