WASHINGTON -- In the 2000 presidential election, a majority of Jewish voters pulled the Democratic lever, and a majority of Arab Americans voted Republican. In 2004, the opposite could occur. In the Nov. 2 election, which most experts expect to be close, such a seismic shift in voting patterns has political consultants for both candidates biting their nails. This year many Jewish voters are leaning toward re-electing President Bush, who just broke with 35 years of U.S. policies to endorse a plan for Israel to withdraw from Gaza but maintain disputed Jewish settlements in territory in the West Bank claimed...