Here is McCain spokesman Michael Goldfarb just dying to bring up the Rev. Jeremiah Wright when asked whether Obama has any anti-Semitic connections, but adhering to McCain's order that Wright is off the table. (And, for the record, while there are reasons to be suspicious of Wright's attitudes toward Jews, including his closeness with Farrakhan and extreme hostility to Israel, I haven't seen any hard evidence that he's ever publicly crossed the line into anti-Semitism.) Exactly why McCain has been so resolute in refusing to use what strikes many people as not just a legitimate issue, but a strong issue for him, is an interesting question.