While President-elect Donald Trump and Wikileaks founder Julian Assange have been denying claims that Russia had anything to do with the hacks into the Democratic National Committee, U.S. intelligence officials claim they have just found new evidence to prove Russia was the culprit.

In a classified report provided to President Obama, the intel community said they heard Russian officials acting gleeful over the election results.

Included in that new information were intercepted conversations of Russian officials expressing happiness at Trump's win. Another official described some of the messages as congratulatory. Officials said this was just one of multiple indicators to give them high confidence of both Russian involvement and Russian intentions. Officials reiterated that there is no single intercepted communication that qualifies as a "smoking gun" on Russia's intention to benefit Trump's candidacy or to claim credit for doing so.

Is a "congratulations" enough to prove Russia guilty?

Trump, who has criticized the CIA for its history of inaccuracies, especially in the case of weapons of mass destruction in Iraq, has doubted their conclusions every step of the way.