US President Donald Trump has declared that he had been completely exonerated after his campaign was cleared of colluding with Russia in the 2016 election, in a major boost for his re-election hopes.
The long-awaited final report of Special Counsel Robert Mueller's probe into Moscow's election meddling concluded that no member or associate of the campaign conspired or coordinated with Russia in its plot to boost Mr Trump in the vote more than two years ago.
While the Mueller report did not exonerate the president of obstruction of justice, Attorney General Bill Barr's letter to Congress summarising the still-secret document cleared a dark cloud that had hung over Mr Trump's legitimacy since he took office in January 2017.
"There was no collusion with Russia. There was no obstruction. It was a complete and total exoneration," Mr Trump said of Mr Mueller's conclusions.
"It's a shame that the country had to go through this," he added. "This was an illegal takedown that failed."
Deputy press secretary Hogan Gidley said Mr Trump was "in a really good mood" and "very happy with how it all turned out".
Mr Gidley said the president watched television, talked to staff and made calls during his flight home from Florida.
No collusion with Russians
Summarising Mr Mueller's findings, Mr Barr said no Trump campaign official was involved in Russian conspiracies in 2016 to hack Democratic computers and flood social media with disinformation to harm Mr Trump's Democratic election rival Hillary Clinton.
He also said there were no new surprises coming from the Mueller team, which is disbanding, no further indictments being referred, and no sealed indictments outstanding.
On the other hand, according to Mr Barr's letter, Mr Mueller clearly had some evidence to support an obstruction case, but was uncertain whether it was enough to support criminal charges.
"While this report does not conclude that the president committed a crime, it also does not exonerate him," Mr Barr cited Mr Mueller as saying.
Democrats in Congress are now certain to demand Mr Mueller's underlying evidence and push to investigate further.
"It is unacceptable that, after Special Counsel Mueller spent 22 months meticulously uncovering this evidence, Attorney General Barr made a decision not to charge the President in under 48 hours," the Democratic chairs of the House Judiciary, Intelligence and Oversight committees said in a joint statement.
"His unsolicited, open memorandum to the Department of Justice, suggesting that the obstruction investigation was 'fatally misconceived,' calls into question his objectivity on this point in particular."
Door opened for strong 2020 bid
A major barrier for Mr Trump's re-election in 2020 lifted just as a strong field of potential Democratic candidates was forming to select who would take him on.
Mr Trump for two years has labelled the investigation a "witch-hunt," even as Mr Mueller's team issued charges ranging from conspiracy to lying to investigators against 34 individuals.
Six of those were former insiders in Mr Trump's circle, and five have been convicted, including Mr Trump's former personal attorney Michael Cohen, his national security advisor Michael Flynn and his campaign chairman Paul Manafort.
Mr Cohen was sentenced to three years in prison for crimes including, at Mr Trump's alleged instruction, using campaign funds for hush payments to an adult film star who allegedly had an affair with Mr Trump.
Mr Manafort was imprisoned for seven-and-a-half years, though mostly for crimes unrelated to the campaign.
The probe saw Mr Trump frequently angrily attacking Mr 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.
For months, the White House worried that Mr Mueller was honing in on Mr Trump's family, including son Don Jr and son-in-law Jared Kushner, as well as the president himself.
And it also left questions in the minds of many of Trump's supporters, who will now likely unite around his declaration of "complete exoneration".
White House advisor Kellyanne Conway tweeted "congratulations" to her boss.
"Today you won the 2016 election all over again. And got a gift for the 2020 election," she tweeted.
"They'll never get you because they'll never 'get' you."
Investigations move to Congress
But the end of Mr Mueller's operation did not leave Mr Trump's White House in the clear.
Democrats in Congress are already conducting some 17 investigations of the administration, spreading their net far more broadly than Mr Mueller's relatively narrow mandate.
They want the full Mueller report and are demanding the underlying evidence supporting his conclusions.
Senate Democratic Leader Chuck Schumer and House Speaker Nancy Pelosi said Mr Barr's summary of the Mueller findings "raises as many questions as it answers".
"The fact that Special Counsel Mueller's report does not exonerate the president on a charge as serious as obstruction of justice demonstrates how urgent it is that the full report and underlying documentation be made public without any further delay," they said.
Democrat Jerry Nadler, chairman of the House Judiciary Committee, announced that he would be calling Mr Barr to testify in the near future.
"Special Counsel Mueller clearly and explicitly is not exonerating the president, and we must hear from AG Barr about his decision making and see all the underlying evidence for the American people to know all the facts," Mr Nadler said.