Washington Post backs CNN that Trump was briefed on this document.
https://www.washingtonpost.com/world/national-security/intelligence-chiefs-briefed-trump-and-obama-on-unconfirmed-claims-russia-has-compromising-information-on-president-elect/2017/01/10/9da3969e-d788-11e6-9a36-1d296534b31e_story.html?utm_term=.e7a80d37fbb2
Trump also now admits he believes Russia did hack into the DNC and try to disrupt things, not some "400 pound guy" which was his previous excuse, that has kinda been quietly shoved under the rug of all this.