It was a moment of triumph for Trump, who has always been targeted over the matter. "To be honest, it's a shame that your president had to go through this".
"It's a shame our country had to go through this".
"The Special Counsel did not find any collusion and did not find any obstruction".
The release of the summary is likely to ignite a new political fight in Washington as Democrats push for Barr to release the full report, and Trump seizes on the findings as vindication of his near daily assertion that he was a victim of a "witch hunt" that has cast a long shadow over his presidency.
Democrats demanded to receive Mueller's entire report and his underlying evidence to further their own multiple investigations into the president. Barr and Deputy Attorney General Rod Rosenstein, two Trump nominees, decided after reading Mueller's report that there wasn't enough evidence to establish the president's guilt, even setting aside the question of whether federal prosecutors can indict the president.
For Trump, Barr's report was a victory on a key question that has hung over his presidency from the start: Did his campaign work with Russian Federation to defeat Democrat Hillary Clinton?
The conclusion of Special Counsel Robert Mueller's investigation into Russia's interference in the 2016 presidential election and possible collusion by then-candidate Donald Trump's campaign has networks scrambling to provide comprehensive coverage.
White House aides say Trump has not been briefed on the outcome of Mueller's investigation, a probe that has clouded nearly the entirety of his 26-month presidency.
French President Macron Urges EU to ‘Confront US, China’
The Trump administration is engaged in ongoing trade talks with both the European Union and China as part of the Republican president's "America First" agenda.
Mueller has left it to the attorney general to take a final call on whether a crime was committed.
The unending probe saw Trump frequently angrily attacking Mueller - one of the most respected members of Washington's judicial and prosecutorial elite - and at times appeared to throw his policy momentum off course.
Many pointed out that Mueller's report doesn't exonerate Trump - instead, it seems to be leaving that question to Congress.
Senator Elizabeth Warren of MA, a frequent critic of the president, requested that Barr disclose the report "to the American public".
Ann Mueller and former special counsel Robert Mueller walk on March 24, 2019 in Washington.
Barr's summary said Mueller found no evidence that the Trump campaign coordinated with Russian Federation, despite multiple offers from individuals associated with Russian Federation.
Mr Mueller brought charges against six former Trump aides: Michael Cohen, Michael Flynn, Paul Manafort, Roger Stone, Rick Gates and George Papadopoulos.
"In cataloguing the President's actions, many of which took place in public view, the report identifies no actions that, in our judgment, constitute obstructive conduct", Mr Barr added in his letter. "This is about transparency and truth - and a 4 page summary from Trump's AG doesn't cut it", tweeted Rep Mark Takano, D-Ca, the chairman of the Veterans Affairs Committee.