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.

Trump has yet to speak out as Robinson faces pressures to exit the North Carolina gubernatorial race after reports of his past messages to an adult website.

Mark Robinson, the Republican nominee for governor in North Carolina was exposed Thursday afternoon for an extensive comment history on a pornography forum called “Nude Africa” where he called himself a “Black Nazi,” attacked Martin Luther King Jr. repeatedly, and even talked about buying slaves if it became legal again.