Most of Trump's supporters were well off

Nicholas Carnes and Noam Lupu write in It’s time to bust the myth: Most Trump voters were not working class that most of Trump's supporters were relatively affluent:

Among people who said they voted for Trump in the general election, 35 percent had household incomes under $50,000 per year (the figure was also 35 percent among non-Hispanic whites), almost exactly the percentage in NBC’s March 2016 survey. Trump’s voters weren’t overwhelmingly poor. In the general election, like the primary, about two thirds of Trump supporters came from the better-off half of the economy.