BYRON YORK: Did dossier trigger the Trump-Russia probe? “The FBI opened a counterintelligence investigation into the Trump-Russia affair shortly after receiving the first installment of an anti-Trump dossier from a former British spy working for the Hillary Clinton campaign. What congressional investigators want to know is whether that was a coincidence or not.” I’m going to go with “not.”

Plus: “Now the moving parts, as far as the dossier is concerned, are the Mueller investigation and Congress. With Mueller, it’s impossible to determine whether he is using the dossier and if so, in what way. For its part, Congress is trying to uncover the dossier story — what did the FBI do to try to verify it? Did agents use it as a basis for seeking wiretaps? — but getting information out of the FBI, as well as Fusion GPS, has been like pulling teeth, even after a House subpoena. Ultimately more will become public. But if the past months have shown anything, it is that the FBI will not reveal its secrets, even to its legitimate congressional overseers, without a fight.”