Britain’s spy agencies played a crucial role in alerting their counterparts in Washington to contacts between members of Donald Trump’s campaign team and Russian intelligence operatives, the Guardian has been told.
GCHQ first became aware in late 2015 of suspicious “interactions” between figures connected to Trump and known or suspected Russian agents, a source close to UK intelligence said. This intelligence was passed to the US as part of a routine exchange of information, they added.
Over the next six months, until summer 2016, a number of western agencies shared further information on contacts between Trump’s inner circle and Russians, sources said.
The European countries that passed on electronic intelligence – known as sigint – included Germany, Estonia and Poland. Australia, a member of the “Five Eyes” spying alliance that also includes the US, UK, Canada and New Zealand, also relayed material, one source said.
Another source suggested the Dutch and the French spy agency, the General Directorate for External Security or DGSE, were contributors.
It is understood that GCHQ was at no point carrying out a targeted operation against Trump or his team or proactively seeking information. The alleged conversations were picked up by chance as part of routine surveillance of Russian intelligence assets. Over several months, different agencies targeting the same people began to see a pattern of connections that were flagged to intelligence officials in the US.
The issue of GCHQ’s role in the FBI’s ongoing investigation into possible cooperation between the Trump campaign and Moscow is highly sensitive. In March Trump tweeted that Barack Obama had illegally “wiretapped” him in Trump Tower.
The White House press secretary, Sean Spicer, claimed the “British spying agency” GCHQ had carried out the bugging. Spicer cited an unsubstantiated report on Fox News. Fox later distanced itself from the report.
The claims prompted an extremely unusual rebuke from GCHQ, which generally refrains from commenting on all intelligence matters. The agency described the allegations first made by a former judge turned media commentator, Andrew Napolitano, as “nonsense”.
“They are utterly ridiculous and should be ignored,” a spokesperson for GCHQ said.
Instead both US and UK intelligence sources acknowledge that GCHQ played an early, prominent role in kickstarting the FBI’s Trump-Russia investigation, which began in late July 2016.
One source called the British eavesdropping agency the “principal whistleblower”.
The Guardian has been told the FBI and the CIA were slow to appreciate the extensive nature of contacts between Trump’s team and Moscow ahead of the US election. This was in part due to US law that prohibits US agencies from examining the private communications of American citizens without warrants. “They are trained not to do this,” the source stressed.
“It looks like the [US] agencies were asleep,” the source added. “They [the European agencies] were saying: ‘There are contacts going on between people close to Mr Trump and people we believe are Russian intelligence agents. You should be wary of this.’
“The message was: ‘Watch out. There’s something not right here.’”
According to one account, GCHQ’s then head, Robert Hannigan, passed material in summer 2016 to the CIA chief, John Brennan. The matter was deemed so sensitive it was handled at “director level”. After an initially slow start, Brennan used GCHQ information and intelligence from other partners to launch a major inter-agency investigation.
In late August and September Brennan gave a series of classified briefings to the Gang of Eight, the top-ranking Democratic and Republican leaders in the House and Senate. He told them the agency had evidence the Kremlin might be trying to help Trump to win the presidency, the New York Times reported.
One person familiar with the matter said Brennan did not reveal sources but made reference to the fact that America’s intelligence allies had provided information. Trump subsequently learned of GCHQ’s role, the person said.
The person described US intelligence as being “very late to the game”. The FBI’s director, James Comey, altered his position after the election and Trump’s victory, becoming “more affirmative” and with a “higher level of concern”.
Comey’s apparent shift may have followed a mid-October decision by the Foreign Intelligence Surveillance Act (Fisa) court to approve a secret surveillance order. The order gave permission for the Department of Justice to investigate two banks suspected of being part of the Kremlin’s undercover influence operation.
According to the BBC, the justice department’s request came after a tipoff from an intelligence agency in one of the Baltic states. This is believed to be Estonia.
The Washington Post reported on Wednesday that the same order covered Carter Page, one of Trump’s associates. It allowed the FBI and the justice department to monitor Page’s communications. Page, a former foreign policy aide, was suspected of being an agent of influence working for Russia, the paper said, citing US officials.
The application covered contacts Page allegedly had in 2013 with a Russian foreign intelligence agent, and other undisclosed meetings with Russian operatives, the Post said. Page denies wrongdoing and complained of “unjustified, politically motivated government surveillance”.
Late last year Comey threw more FBI resources into what became a far-reaching counter-intelligence investigation. In March he confirmed before the House intelligence committee that the agency was examining possible cooperation between Moscow and members of the Trump campaign to sway the US election.
Comey and the NSA director, Admiral Michael Rogers, said there was no basis for the president’s claim that he was a victim of Obama “wiretapping”. Trump had likened the unproved allegation to “McCarthyism”.
Britain’s MI6 spy agency played a part in intelligence sharing with the US, one source said. MI6 declined to comment. Its former chief Sir Richard Dearlove described Trump’s wiretapping claim on Thursday as “simply deeply embarrassing for Trump and the administration”.
“The only possible explanation is that Trump started tweeting without understanding how the NSA-GCHQ relationship actually works,” Dearlove told Prospect magazine.
A GCHQ spokesperson said: “It is longstanding policy that we do not comment on intelligence matters”.
It is unclear which individuals were picked up by British surveillance.
In a report last month the New York Times, citing three US intelligence officials, said warning signs had been building throughout last summer but were far from clear. As WikiLeaks published emails stolen from the Democratic National Committee, US agencies began picking up conversations in which Russians were discussing contacts with Trump associates, the paper said.
European allies were supplying information about people close to Trump meeting with Russians in Britain, the Netherlands and in other countries, the Times said.
There are now multiple investigations going on in Washington into Trump campaign officials and Russia. They include the FBI-led counter-espionage investigation and probes by both the House and Senate intelligence committees.
Adam Schiff, the senior Democrat on the House committee, has expressed an interest in hearing from Christopher Steele, the former MI6 officer whose dossieraccuses the president of long-term cooperation with Vladimir Putin’s Moscow. Trump and Putin have both dismissed the dossier as fake.
One source suggested the official investigation was making progress. “They now have specific concrete and corroborative evidence of collusion,” the source said. “This is between people in the Trump campaign and agents of [Russian] influence relating to the use of hacked material.”
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