As much as I can’t stand hussein, this revising history tests has been going on for generations. Twentysome years ago, our exchange student’s high school US history book was not even close to what I learned in school.
Yes - the left is much bigger than hussein.
One of the biggest revisionist of American History was Howard Zinn with his “A People’s History of the US”.
http://www.historyisaweapon.com/zinnapeopleshistory.html
This became the textbook for american history in many colleges and even high schools. It is essentially the same tripe that is being advance by the History AP board.