Robert Mueller wrote a letter to Attorney General William Barr complaining Barr's four-page summary did not " fully capture the context, nature, and substance" of his team's two-year investigation into President Trump and his 2016 campaign, according to a report.
"The summary letter the Department sent to Congress and released to the public late in the afternoon of March 24 did not fully capture the context, nature, and substance of this office’s work and conclusions. There is now public confusion about critical aspects of the results of our investigation. This threatens to undermine a central purpose for which the Department appointed the Special Counsel: to assure full public confidence in the outcome of the investigations," Mueller wrote, according to a copy of the letter obtained by the Washington Post.
The letter took the Department of Justice by surprise because they were under the impression Mueller agreed with the summary, which stated the special counsel did not find anyone on Trump's campaign conspired "with the Russian government in its efforts to interfere with the 2016 presidential election."
Barr, with Deputy Attorney General Rod Rosenstein, then concluded Trump did not commit obstruction of justice.
Barr and Mueller later spoke, with Mueller again expressing concern over how the summary, which he said was not inaccurate, and the investigation were being misinterpreted by the media.
A DOJ spokesperson : "After the Attorney General received Special Counsel Mueller’s letter, he called him to discuss it. In a cordial and professional conversion, the Special Counsel emphasized that nothing in the Attorney General’s March 24 letter was inaccurate or misleading. But, he expressed frustration over the lack of context and the resulting media coverage regarding the Special Counsel’s obstruction analysis."
The redacted version of the special counsel's report was finally released in April.