Actor Samuel L. Jackson is threatening to sue after learning about a political campaign ad that calls him “the new Uncle Tom.”

Randall Terry, who is running for both president of the United States and for Congress in Florida, and who has made news for years as a controversial pro-life activist, made an ad accusing Jackson of “carrying water for racists,” in response to Jackson’s “Wake the F**k Up!” political ad supporting President Obama.

In the video, which also features graphic photos of aborted fetuses, Terry dresses up as a character named “Sir Reginald Bling” and raps about Jackson’s betrayal to his race by using lines from his movies.