When moderator Chris Wallace asked President Donald Trump to condemn white supremacists and named Proud Boys as one such group, the name may have been off-putting to some, not just because co-signed racial hatred but because they'd never heard of the group.

Rather than denouncing them as he was challenged to do, the president instead seemed to give the white supremacist group a shout-out, telling them to “stand back and stand by.”

Members of the organization, which has been formally classified as a hate group by the Southern Poverty Law Center, have since taken to social media to celebrate the comment as seal of approval from the president himself.

But who are the Proud Boys? Here's what you should know.