A Texas school district is facing fire today after a junior high school teacher distributed an assignment that included a cartoon showing modern police as evolving from slave owners and members of the Ku Klux Klan.

The unauthorized assignment for what was apparently a lesson on political satire showed a five-panel cartoon that started with a slave ship officer with a knee on a black man’s neck and ended with a modern-day police officer also with a knee on a prisoner’s neck.

The political cartoon included the victims in all five panels saying the words, “I can’t breathe.”

Fraternal Order of Police President Joe Gamaldi ripped the lesson and won an apology from David Vinson, the superintendent of the Wylie Independent School District, northeast of Dallas.

The unnamed teacher reportedly pulled the political cartoon from a mainstream media source, the Washington Examiner reports.