From The Washington Post:
Michael Tesler is assistant professor of political science at UC Irvine … For this reason, Trump’s call to end Islamic immigration is unlikely to offend his strongest supporters. Indeed, over half of Trump primary supporters already thought Muslims posed an immediate threat to the United States and that a majority of Muslims worldwide support the Islamic State – and this was even before the San Bernardino terrorist attack.

For the full story, please visit https://www.washingtonpost.com/news/monkey-cage/wp/2015/12/08/how-hostile-are-trump-supporters-toward-muslims-this-new-poll-will-tell-you/.