Iran sent messages to people involved in Biden's re-election campaign with material from Trump's campaign as part of efforts to influence the election, U.S. intelligence said.

Iranian operatives stand accused of hacking the Trump campaign and attempting to spread the internal communications they pilfered. They also sought access to the Democratic presidential campaign, but there's no indication those efforts were successful.

Iranian hackers sought unsuccessfully to interest President Joe Biden's campaign in information stolen from rival Donald Trump's campaign, federal agencies said.