The Republican presidential frontrunner claimed that research by the respected Pew organisation showed a "great hatred towards Americans by large segments of the Muslim population" - but he did not refer to any specific study to support that claim, and we can't find one that does. Mr Trump did cite a specific a study by the Center for Security Policy - "very highly respected people, who I know, actually" - which he said showed that 25% of Muslims in the US believed violence against America was justified "as part of the global jihad". *snip* But what exactly is the Center...
