Before you think this article is “just one liberal’s opinion,” let me briefly say I have dedicated my life to studying racism. I earned my PhD from Emory University in 1995 after spending several years doing ethnographic field studies of white supremacist groups. I have published books and articles in peer-reviewed journals on the subject and have appeared on more TV shows than I can remember discussing how hate works. In my 20 years at Portland State University, I interviewed scores of committed racists, from teenage skinheads to racist murderers and founders of Nazi prison gangs. So when I say that presidential candidate Donald Trump is a racist hate-monger it’s not just a political pejorative. He has a constitutional right to hold and express racist views, but using those views to manipulate the intellectually vulnerable and mobilize active bigots requires a coherent response. As an expert on hate, I am more than comfortable stating that either Trump is a virulent racist or that he is willing to perform racism and use racism of others to advance his political position.