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The authors argue in this study that religious beliefs play a significant role in predicting American public opinion on foreign policy issues in the Middle East. Their findings reveal that Evangelical Christians have remained strong supporters of a hawkish foreign policy toward the Middle East, even as overall public support for the Iraq War declines. They also find that Evangelicals are among the strongest supporters of Israel and hold more negative views of Islam than others. These results reinforce the growing importance of the “faith factor” in public opinion and American politics as a whole.
Baumgartner et al. (2008) studied this question.