The attorney general's decision on what to finally disclose seems nearly certain to set off a fight with congressional Democrats, who want access to all of Mr Mueller's findings - and supporting evidence - on whether Trump's 2016 campaign coordinated with Russian Federation to sway the election and whether the president later sought to obstruct the investigation.
U.S. Attorney General William Barr was expected to give Congress and the public a summary of the report by Special Counsel Robert Mueller who has conducted a 22-month-long Russian Federation investigation. On Saturday, he played golf with Kid Rock and tweeted, "Have a Great Day!" on Sunday morning.
U.S. House of Representatives Speaker Nancy Pelosi, a Democrat, said Barr's offer to provide congressional committees with a summary of the report's conclusions is insufficient and that "Congress requires the full report and the underlying documents". She consulted with Schiff and other committee leaders over the weekend as Attorney General William Barr notified Congress of Mueller's report and summarized the details.
Kamala Harris, a senator from California, not only demanded "total transparency", but said Barr "must publicly testify under oath about the investigation's findings".
The report is the culmination of two years of investigation by Mr Mueller.
Yarmuth called for the full investigation report to be released. Some cautioned portions of it might need to remain confidential.
Mueller's long-awaited report was delivered to the Attorney General on March 22.
The special counsel's report on how the Russians tried to influence the 2016 presidential election and any involvement with the Trump campaign is being boiled down to a summary of key findings.
Schiff, who has become a leading Democratic voice on the investigations into Trump, shrugged off his critics.
Barr made clear he had rejected that possibility of a criminal charge after reviewing the findings of an investigation that has long cast a pall over Trump's presidency.
But, Nadler added, "We know there was collusion".
Rep. Pramila Jayapal, D-Wa., a member of the Judiciary Committee and co-chair of the Congressional Progressive Caucus, said this is perhaps an "unparalleled" moment in the country's history and Mueller's work is just the start.
President Donald Trump is touting the Justice Department's summary of special counsel Robert Mueller findings, saying "it was a shame" the nation had to go through the investigation.
House Republican Whip Steve Scalise said the allegations against Trump were concocted by Democrats and the media. "That's good news, in general, and it's good news for President Trump".
Democratic leaders in Congress have rejected talk of impeachment as premature.
Almost two years to the day after Rep. Adam Schiff (D-CA) read into the congressional record unverified and salacious allegations about Russian collusion from the now discredited "Trump Dossier", senior Republicans are calling for his resignation.
Evidence gathered in special counsel Robert Mueller's investigation "is not sufficient to establish" that President Donald Trump committed obstruction of justice.
US intelligence agencies concluded shortly before Trump took office in January 2017 that Moscow meddled in the election with a campaign of email hacking and online propaganda aimed at sowing discord in the United States.
While pursuing no new indictments, Mueller indicted 34 individuals during the probe, among them six Trump associates, including his former national security advisor Mike Flynn, his former personal lawyer Michael Cohen, and campaign chairman Paul Manafort. None of those charges, however, directly related to whether Trump's campaign worked with Moscow.
That produced sighs of relief from the White House, where members of Trump's family - Don Jr and son-in-law Jared Kushner in particular - had been feared possible targets of the probe.
Trump, in Florida, said the report proved "there was no collusion" as he has contended for many months.
Paul also said on Twitter that the allegations of collusion between Russian Federation and Trump were fueled by media coverage.