Donald Trump’s campaign declined to comment Thursday on whether North Carolina Lt. Gov. Mark Robinson, whom the former president once described as “Martin Luther King on steroids,” should drop out of the battleground state’s race for governor.

Republican North Carolina gubernatorial candidate Mark Robinson referred to himself as a “Black Nazi,” disparaged Martin Luther King Jr., used antisemitic and homophobic slurs and spoke highly of slavery on a pornographic website before his entrance into politics, according to a new CNN report —as Robinson denies making the comments.