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The CIA has concluded with "high confidence" that Russia interfered in the American presidential election not only to promote public distrust of U.S. institutions, as was originally suspected this fall, but to sway the outcome in favor of President-elect Donald Trump, a senior intelligence official said in a Washington Post report published late Friday evening.

"It is the assessment of the intelligence community that Russia's goal here was to favor one candidate over the other, to help Trump get elected," the official said, referring to a secret CIA assessment shared with congressional leaders in a closed-door briefing last week. The CIA also believes Moscow hacked the Republican Party, much as it did the Democratic Party, but did not leak the information it obtained from the GOP. However, the agency did not say it believes Russian efforts successfully altered electoral outcomes.

Earlier on Friday, President Obama ordered a "full review" of reports of hacking during the presidential election to be completed before Trump's inauguration on Jan. 20, 2017. The White House did not specify whether the results of that review would be made public.