What caused the decline in the black vote during 2016 elections

What caused the decline in the black vote during 2016 elections

Explain why Hillary and donald was unable to connect to the black vote, link that reason as a factor in the decline. other factors are strict voting laws voter suppression, Please use reliable sources like google scholar, Washington post, Pew and books if you can. i need at least 4 pages of work cited. any web source you find link one of the words to the senctence. if you you the Washington post twice please number it.