The new intelligence helped prompt President Obama to retaliate against Russia for the cyber attacks, according to Reuters.
Intelligence officials finalized a new report on Russian hacking this week, which they presented to Obama on Thursday morning, according to the Associated Press. Donald Trump is scheduled to be briefed on the report on Friday.
The President-elect has repeatedly tried to cast doubt on U.S. intelligence officials' conclusion that Russian actors were behind the Democratic National Committee hacks and that the cyber attacks were meant to influence the U.S. 2016 election. Trump claimed on Tuesday night that intelligence officials delayed their briefing with him on the Russia hacks, but officials have pushed back on that claim and said that the briefing was always scheduled for Friday.