Rep. Drew Ferguson (R-GA) is under fire for displaying a passage from a book on General Robert E. Lee that says, “blacks are immeasurably better off here than in Africa.”

Members of the American Federation of Government Employees saw the passage from the 1897 book, General Robert Edward Lee: A Soldier, Citizen and Christian Patriot, on display in his office while they waited for a scheduled meeting with Ferguson on Monday. The union is demanding a public apology from Ferguson, CNN reports.

The offensive passage on display reads: “The blacks are immeasurably better off here than in Africa, morally, socially, and physically. The painful discipline they are undergoing is necessary for their instruction as a race, and, I hope, will prepare and lead them to better things.”

Drew Ferguson represents Georgia’s third congressional district. He is in his second term.