Comedy’s “it” girl, Tiffany Haddish, winning Guest Actress in a Comedy Series for hosting Saturday Night Live, set the tone for what became a historic night at the Creative Arts Emmy Awards on Saturday. All four guest acting categories went to Black actors, Haddish, Ron Cephas Jones (This Is Us), Samira Wiley (The Handmaid’s Tale) and Katt Williams (Atlanta) This blows past previous high water marks — in the past two decades, there have been only two instances of multiple wins for black guest actors — in 2003 and 2014. Both times two of the four winners were people of...