Carroll is a previous leader of the English Defense League. He left the EDL with Tommy Robinson in 2013. He has ties to Pamela Geller and Robert Spencer and is part of Stop Islamizaiton of Nations.
Center for Security Policy
The Center for Security Policy is a key anti-Muslim lobbying and propaganda group founded by Frank Gaffney. CSP seeks to advance anti-Muslim sentiment in both policy and society and predicates Islam as an existential threat to America.