The former senior director for European and Russian affairs for the Trump administration, Fiona Hill, testified last week in the House impeachment hearings. At one point, Rep. Raja Krishnamoorthi, D-Ill., asked her: “Would you say that these different theories, these conspiracy theories that have been targeting you, spun in part by folks like Mr. Stone as well as fueled by Rudy Giuliani and others, basically have a tinge of anti-Semitism to them at least?” This was Hill’s response: "Well, certainly when they involve George Soros, they do. I’d just like to point out that in the early 1900s, the czarist...