I have read both "Sundown Towns" and "Lies My Teacher Told Me" written by James Loewen.
In short, he's an American-hating Marxist. That's all that needs be known. Distrust everything and anything written by the repulsive and insignificant homunculus:
"White Northerners' fear of freed slaves moving north then caused Republicans to lose the Midwest in the congressional elections of November 1862."
He must be a Republican.