"Who are the Trump voters".
They are the people who've been brainwashed by Fox News over the last 20 years. Although Fox may not have (fully) supported Trump, his supporters are the people in this paper (below) counted/listed on the "Fox News" lines.
A good paper from Reagan Republican Bruce Bartlett (now an "Independent" not because Trump has captured the Republican Party but because Fox News has captured it).
How Fox News Changed American Media and Political Dynamics by Bruce Bartlett :: SSRN:
'via Blog this'