At the first Republican presidential debate last month, the Fox News moderators asked Wisconsin Gov. Scott Walker about the Black Lives Matter movement. As we noted at the time, Walker’s answer seemed bland but contained a coded message for regular Fox News viewers : that he had discussed the issue “many times” with Milwaukee County Sheriff David Clarke, a frequent Fox News guest who specializes in denying racial disparities in the criminal justice system and in criticizing the Black Lives Matter movement.

Clarke took his criticism of Black Lives Matter to a new low this weekend when, as a guest on Fox News, he blamed the movement for the recent shooting of a sheriff’s deputy in Houston, saying, “I’m tired of hearing people call these people black activists, they’re not activists, this is black slime and it needs to be eradicated from the American society and the American culture.”

He urged viewers to push back “against this slime, this filth” and “these ugly people.”