Filmmaker Spike Lee wears “God protect Robert Mueller” t-shirt on CNN during an interview with Anderson Cooper to promote his new movie, BlacKkKlansman.

Lee, who refuses to call Donald Trump by name and refers to him as “Agent Orange,” said he has given a “green light” to racists in the U.S.

“Since [Trump] has gotten into the White House it is not even a dog whistle, it’s a bullhorn,” Lee said. “We’ve seen a rise to the right. It’s not just America, it’s worldwide,” Lee said.

Lee echoed LeBron James’ sentiments that he would not sit down with Trump. Trump attacked James, who recently opened a school for at-risk children in Akron, as “dumb.”

BlacKkKlansman is intentionally being released on the anniversary of the deadly white supremacist rally in Charlottesville during which counter-protester Heather Heyer was murdered by neo-Nazi sympathizer James Fields.

“The president of the United States had a chance to denounce hate,” Lee said. “The whole world saw what happened and he didn’t do it.”