As a leader in the American Jewish community for some 30 years, I have never asked fellow Jews to vote for a presidential candidate. I have always believed that Jews have had Jewish reasons to vote for candidates from both parties. Not this election. There are overwhelmingly powerful Jewish reasons to vote for President Bush and equally powerful Jewish reasons not to vote for John Kerry. To understand this, I need to explain the word "Jewish." It means two things: that which concerns Judaism and its values, and that which concerns Jews as a distinct ethnic people. Whichever definition one...