US intelligence officials said Iran was behind the recent hacking of Donald Trump’s presidential campaign and has tried to compromise the Biden-Harris campaign as part of Tehran’s “increasingly aggressive” attempts to interfere in the election. 

In a statement on Monday, the FBI and two other US agencies said Iran perceived the November vote to be “particularly consequential in terms of the impact they could have on its national security interests” and was attempting to interfere in US politics through both hacking and influence operations. 

The statement confirmed claims made earlier this month by the Trump campaign that a number of its internal emails had been hacked by Iran. Victims also appear to include longtime Trump ally Roger Stone, who last week told US media he had been notified by authorities that his personal email accounts had been compromised.