The British Parliament's Intelligence and Security Committee has blasted the government for failing to conduct any rigorous analysis of whether or not Russia tried to influence the EU referendum campaign.
A long-awaited report will reveal Kremlin influence on UK elections,but says there was no influence on Brexit.
In the letter to the FBI,Democrats said they were"gravely concerned"Congress seemed to be in the crosshairs of"a concerted foreign interference campaign".
Intelligence officials had long suspected that Russian operatives were behind the German cyberattack,but it took five years to collect the evidence.
US officials have said Russia supported Trump in 2016 and took steps to help his campaign and harm Clinton's candidacy.
Facebook,with about 220 million US users,remains the central digital vehicle for reaching Americans spending more time online during the coronavirus pandemic.
The campaign appears to have picked up steam around mid-March with Mandarin-language Twitter accounts designed to mimic and harass Western media.
One Qatar-based researcher analysed 22,000 recent interactions on Twitter and found a large number of accounts displayed"inauthentic activity."
China and the US are waging a battle to shape the global narrative over responsibility for the outbreak.
The Chinese Communist Party understands that by the time the crisis is over the world’s order could be altered. For that reason,it's pushing messages hard.
Federal officials began confronting what they said was a deliberate effort by a foreign entity to sow fears of a nationwide quarantine amid the virus outbreak.