progressives started. [chanting] the path is paved for another infiltration of america s classrooms. in the early 1900s, there wasn t something called the frankfurt school out of germany. many of the scholars in the frankfurt school escaped nazi germany. they came to america, and by settled in the columbia teachers college. what was the frankfurt school doing? the frankfurt school was pushing marxist ideology called critical theory. at that point, our teachers in that teacher college stretch of the indoctrination into axis ideology. several years later, estimates showed that about one-third of our principals and superintendents enlarged city school districts had been trained in the colombian teachers college.