Democrats are crowing rather loudly about how Latinos, African Americans, women and young people came out to vote in numbers that helped keep President Obama in the White House. As well they should. The demographics of this nation are changing and Democrats are benefiting from it. But a friend of mine e-mailed this morning with a legitimate worry.

Joshua Keirsey, a member of the United Steelworkers union, canvasses for President Obama's reelection campaign in Steubenville, Ohio, in October. (T.J. Kirkpatrick/BLOOMBERG)

“Overall the messages seem to be Latinos, Blacks and women voted for the President. A great message for the other side, but an inaccurate message for the President,” she continued in a subsequent e-mail. “He pulled from all kinds of Americans, rich, poor, middle class, all Americans. Like the President, who is half white and half Black, which also seems to go unrecognized, his campaign reflected his DNA and his lifetime experience.”