When Did Donald Trump Become A Racist?

Must've been some time after 1986, when he received the Ellis Island Medal of Honor:

Must've been some time after 1996, when he appeared in this cameo:


There sure have been a lot of actors, actresses, directors, and networks who were more than happy to be seen with him on screen.  Were they OK with being seen with a racist, or did they not consider him a racist?  What about all that time on The Apprentice?


My guess is that he became a racist around, when, 2015/2016?  Perhaps you libs can enlighten me.

Update, 7/28/19:

Update, 8/17/19:  Spike Lee hangs out with a known racist?