District of Columbia’s Demographics Change, but Democratic Voting Doesn’t

Today we continue our Presidential Geography series, a one-by-one examination of the economic and demographic peculiarities that drive the politics in all 50 states and the District of Columbia. Todays special Independence Day stop: the District of Columbia. FiveThirtyEight spoke with Washingtons sole member of Congress, Delegate Eleanor Holmes Norton.

If New Hampshire is a light-blue state and Massachusetts is a dark-blue one, perhaps electoral cartographers should come up with a color of its own for the District of Columbia. In 1980, Ronald Reagan lost the district to Jimmy Carter...