I have a problem with the question as currently stated. Universities should hold all professors/instructors accountable for their biased teaching AND BEHAVIOR in ANY college course including a course that IS related to political content and/or when the bias involves political matters, beliefs, political parties, associations, religion, ethnicity, any demographic characteristic, bullying, intimidation, etc in ANY course. Political content is precisely one of the most likely areas in which wacko profs/instructors go off with their bias, bullying and false information and it may or may not be related to the course. 

The Prof who recently went on a rant at MSU to bully and intimidate students to his way way of thinking about  Republicans and Conservatives, etc and political  issues that he falsely claimed about them did so in a Creative Writing class. He not only intimidated conservative students to realize they were not academically free to state their conservative views orally or in writing in this Creative Writing class, but he also spewed false information about Republicans which could cause those students to question or change their beliefs. Similarly, the rant, false information and hate speech about Republicans and Conservatives impacts how the liberal students and non-political students think and act about Republicans and Conservatives including their fellow students. 