OMG! Is this a comedy of idiots? Why would Mueller cite the Steele dossier when we all know it's already been proven fake?
Didn't think Mueller could damage his reputation any more. I was wrong.
No, they are trying to pretend to prove the Steele dossier is true. That's the only play they have left.
Hence, this Cohen-was-in-Prague-as-the-dossier-said ploy. And hence Comey's book tour, whose sole mission is to produce the narrative in which the former FBI Director claims that the salacious stuff about Trump in the dossier is "possible."