The FBI opened an investigation into whether President Trump was acting as an asset for Russia when he fired FBI Director James Comey, newly declassified documents show.
Probe details
The probe, known as "Oxferd Comma," was linked to Crossfire Hurricane, the bureau's investigation into whether Trump's 2016 campaign colluded with the Kremlin to get the 45th president elected.
An administration official has said the agent theory was not backed up by any evidence.
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