Classified Election Hacking Report Complete, President Obama to Be Briefed

POTUS and PEOTUS will be briefed on report findings.

— -- The classified report requested by President Barack Obama detailing Russia's alleged role in cyberattacks during U.S. presidential elections dating back to 2008 is now complete, and he is expected to receive the first briefing on its findings on Thursday afternoon, U.S. officials tell ABC News.

U.S. officials denied claims from Trump that his special briefing was delayed so the U.S. intelligence community could strengthen its case against Russia. Officials instead said there may have been a scheduling disconnect or some confusion on the part of the Trump transition team.

Officials familiar with the report say an unclassified version of its findings is not expected to made public until Monday, the same day Congress gets its classified briefing. Although the unclassified version will be far less revealing, pushing the public findings into next week will likely prolong the ugly spat between Trump and Democrats and the intelligence community over who is responsible for the cyberattacks.

In recent weeks, Trump has repeatedly questioned the conclusions of the intelligence community, which on Oct. 7 stated publicly that it is "confident" Russia directed hacks of political organizations during the 2016 presidential election season.

"I know a lot about hacking," Trump said Monday at his Mar-a-Lago estate in Florida. "And hacking is a very hard thing to prove. So it could be somebody else. And I also know things that other people don't know, and so they cannot be sure of the situation," he said, apparently referring to the intelligence community.