Barr was on pace to release his first summary of Mueller's findings on Sunday, people familiar with the process said.
The special counsel regulations require Mueller to write up his findings and submit them to the attorney general, which he did.
No announcement was expected Saturday as Barr and Deputy Attorney General Rod Rosenstein, who appointed Mueller and oversaw much of his work, analyzed the report and labored to condense it into a summary letter of main conclusions. Barr has a lot of control over how much information will be made public and even revealed to Congress and Trump himself.
Even with the details still under wraps, the end of the probe without additional indictments by Mueller was welcome news to some in Trump's orbit who had feared a final round of charges could ensnare more Trump associates, including members of the president's family.
White House spokesman Hogan Gidley told reporters that the White House still has not received or been briefed on Mueller's report. They wanted to avoid similar investigations in the future which might "produce a lurid document going unnecessarily into detail about someone's intimate conduct". Thank you to POTUS for having me and to EVERYONE at Trump International for being so wonderful. Barr further noted that he may be able to advise the heads of Congress' two judiciary committees of the conclusions reached by the report over the weekend.
On a conference call with members Saturday, House Speaker Nancy Pelosi said that she would reject a classified briefing for the congressional intelligence leaders known as the "gang of eight" to convey information about Mueller's report, arguing that lawmakers must be free to discuss it publicly, according to a person on the call.
White House rejects request for Trump, Putin communications
Lowell also denied saying that Ivanka Trump continued to receive emails related to official business on a personal account. The White House did not respond to Newsweek's request for additional comment on the request from congressional committees.
The conclusion of Mueller's investigation does not remove legal peril for the president. He faces a separate Justice Department investigation in NY into hush money payments during the campaign to two women who say they had sex with him years before the election. He's also been implicated in a potential campaign finance violation by his former lawyer, Michael Cohen, who says Trump asked him to arrange the transactions. Federal prosecutors, also in NY, have been investigating foreign contributions made to the president's inaugural committee. Mueller on Friday concluded his probe of Russian election interference and possible coordination with Donald Trump's campaign.
Pelosi and Senate Democratic leader Chuck Schumer, the two top Democrats in Congress, said the investigation focused on questions that "go to the integrity of our democracy itself: whether foreign powers corruptly interfered in our elections, and whether unlawful means were used to hinder that investigation".
Barr, the top USA law enforcement official, spent nine hours on Saturday studying the report. Mueller, a former Federal Bureau of Investigation director, did not interview Trump in person for his probe.
Trump, who has repeatedly called the Mueller probe a political witch hunt and a hoax, may have been uncharacteristically silent but his eldest son, Donald Trump, Jr., was active on Twitter, retweeting critics of the media and Democrats who argued recent developments proved there was no campaign collusion with Russian Federation.
Six committee chairmen who are all running congressional investigations into the Trump administration, White House and Trump's businesses, all spoke briefly on the call, according to the source, along with House Caucus Chairman Hakeem Jeffries. Chris Coons (shown above right), echoing his party's strategy of moving forward on to other investigations, including probes into Trump's financial dealings.
Some have cited former FBI Director James Comey's precedent-busting speech in 2016 laying out the evidence in the Hillary Clinton email investigation as reason to ignore the standard procedure.