Walmart’s chief executive is the latest to speak out against President Trump’s response to violence by white supremacists in Charlottesville over the weekend.

In a memo to employees, Doug McMillon criticized the president for not “unequivocally rejecting the appalling actions of white supremacists.”

“As we watched the events and the response from President Trump over the weekend, we too felt that he missed a critical opportunity to help bring our country together,” McMillon wrote Monday evening in the memo, which was later posted on Walmart’s website.

McMillon said Trump’s later comments denouncing white supremacy groups “were a step in the right direction and we need that clarity and consistency in the future.”

Walmart did not respond immediately to a request on what McMillon thought when Trump subsequently blamed both sides for the violence in Charlottesville during an appearance Tuesday.

Despite the sharply worded criticism, McMillon plans to remain on the president’s economic advisory council, according to a spokesman for Walmart, which is the country’s largest employer.

McMillon is among a growing number of high-powered executives to denounce the president’s response to the attacks, joining the chief executives of Merck, Under Armour and Intel, all of whom said they were stepping down from advisory roles in Trump’s manufacturing council.

Trump dismissed McMillon’s rebuke on Tuesday during a news conference at Trump Tower.

“The head of Walmart, who I know, who is a very nice guy, was making a political statement,” he said.