It was only a matter of time. Since I have had some liberal friends desert me because of my "dispositions" or in frank terms political beliefs, it makes since that a school of education would want to "clense" the school of impure conservative thought.
If senators can quiz a supreme court candidate to find our how he will vote before confirmation why not ask a teacher to take a multiple point test on his values before granting him tenure.
When I went into teaching school 35 years ago, I was told then that the majority of teachers who are dismissed or don't make it are turned down because of disagreements with other teachers. I believe this mentor professor was trying to tell us to keep our thoughts to ourselves even back then.