The group is associated with the racist American Freedom Party, which has endorsed Trump.
Jared Taylor is one of the groups' leaders. Listen to white nationalist Taylor's Iowa spiel:
In fairness, it should be said that the Trump campaign does not condone such groups. In fact, it has fired staffers for posting racially offensive things on social media. But this is the kind of people Trump attracts. He may be in denial about it, but when all is said and done hate and fear is his appeal.
Decent Americans shouldn't even think about supporting him.