Voters who attend worship at least once a week account for 40 percent of the electorate, according to exit polls, and they tilt heavily toward the GOP. In the 2004 presidential election, the 16 percent of voters who attend church or other services more than once a week went 65 percent to 35 percent for George W. Bush; the 26 percent who attend weekly went 60-40 for the president.The Democrats have