>> reporter: pamela geller is well known to american muslims. >> she is a mascot of such a movement. >> reporter: the movement muslims say, against their religion. critics call geller a muslim basher and friend to white supremists who doesn't mince her beliefs on radical islam. >> we will not abridge our freedom so as not to offend savages. >> reporter: geller led the 2010 crusade against building an islamic center in downtown manhattan. >> we will prevail. >> reporter: the controversial ground zero mosque never opened. she and colleague robert spencer co-founded what are considered two thinly veiled anti-muslim groups. the american freedom defense initiative and stop islamization of america. >> we list that group as a hate group. i would rank pam geller at the top of the list for anti-muslim figures in this country. certainly she and robert spencer