Trump is currently pretending he didn't notice the racist epithets in the video. This is after he made a racist "joke" in a fundamentalist"church" filled with his supporters and they mostly seemed delighted by his racist levity. Some were also making racist hand gestures. He has posted racist content many times before and after moving into the White House. Racism is Trump's ace in the hole. That's why his face supports him even when it hurts them. I suspect the most well-known white supremacy groups think Trump is just a useful idiot just as Putin and his other favorite dictators do.