>> the crowd gathered this past weekend for the annual conference for spencer's think tank. the national policy institute. many in the crowd cheering on spencer's speech with a nazi salute. the video is so alarming, the national holocaust muse in washington wrote a letter in response warning that quote, the holocaust did not begin with killing. it began with words. comparing spencer's words to hitler's. but what used to be a small, obscure extremist group operating on the internet now feels emboldened by trump's campaign rhetoric according to this man. >> they identify with trump for whatever reason and they view him as a champion for their cause. >> reporter: and the hiring of the steve bannon in the trump white house has only intensified the criticism. while bannon once reportedly bragged his website breitbart.com was, quote, the