Who paid for the dossier is old news-- over a year old-- that Trump has raised to attempt to distract from the investigation of his campaign. It was reported over a year ago in several places including the Washington Post that a conservative group opposed to Trump (they supported Ted Cruz I believe) funded the Fusion GPS investigation to find dirt on Trump, and when Cruz lost and Trump was nominated, a group of democrats took over the funding of the Fusion research for the Dossier. That conservative group and its lawyer recently came forward to say they provided initial funding of Fusion. And a lawyer (Marc Elias) supporting Democrats and his firm (Perkins Coie) came forward not too long ago to say that they funded the Fusion GPS work for Democrats. The only question on Elias and his firm is who he told about the funding (but we do know he kept it quiet). Trump has added a twist that the FBI paid for the dossier-- he can ask the FBI. Got it?