Earlier quoted context omitted.
How are white supremacists a "fringe", when you have a US President who openly supports and defends them? Who spreads their propaganda to his 40 million Twitter followers? You can argue about to what extent his views are shared within the wider conservative movement, but when the conservative movement's democratically chosen leader supports an ideology like this, it is clearly not a "fringe".
Openly supports and defends? I'm no Trump fan but this seems blatantly false. He seems to have been disavowing racists since the start.
The ones were Trump quickly condemned people shouting Nazi slogans without qualifications? Not to mention the vehicular murder.