Most of the United States is white, when looked at by geographic area. The U.S. Constitution gives these areas disproportionate political power. The apportionment of the electoral college and U.S. Senators is by geographic area as well as population. This was done so rural states would not be dominated by urban states. It was necessary to get rural southern states to agree to the Constitution. (For more on this topic read this article called "The Electoral College magnifies the power of white voters" (
www.vox.com/...).
The vast areas of America called Flyover Country are not just populated by whites, they are populated by uneducated whites. Exit polls show that 23% of white men without college degrees voted for Clinton, and 34% of white women without college degrees voted for her. I call these people Dumbf*cks in Flyover Country. They elected Trump to the White House. (Unless the Green Party recounts overturn this result.)
The Democratic Party has become mostly urban and very diverse. They are also out of power not only in Washington D.C. but also in 2/3 of the states. If they want to get back into power they have to learn how to get votes from Dumbf*cks in Flyover Country. Thank the Founding Fathers for that.