With all due respect to that "GOP delegate," I think she was full of sh!t. She may have had good reason to believe that Buchanan was an anti-semite, but nothing in the text of his speech would have given any indication of that.
In fact, I would make the case that this woman's reaction to his speech was anti-semitic at its root. When someone gives a speech calling for a preservation of our culture against the secular, nihilistic forces of abortion on demand, homosexual marriage, etc., anyone who calls that speech "anti-semitic" obviously holds a very dim view of Jewish people.
Gosh, we agree on something.