More statistics on the US 2012 Election

I know it's a bother, but there must be a kind of reason why the Republicans are turning out to be the party of the whites and old too.

I offer you what the Washington Post has researched about the American electoral demographics.

HISPANICS
17 percent of U.S. population
Share of 2000 vote: 7 percent
How they voted for president:
Gore: 62 percent
Bush: 35 percent
Share of 2012 vote: 10 percent (up 3 percentage points)
How they voted for president:
Obama: 71 percent
Romney: 27 percent
___
BLACKS
12 percent of U.S. population
Share of 2000 vote: 10 percent
How they voted for president:
Gore: 90 percent
Bush: 9 percent
Share of 2012 vote: 13 percent (up 3 percentage points)
How they voted for president:
Obama: 93 percent
Romney: 6 percent
___
WHITES
63 percent of U.S. population
Share of 2000 vote: 81 percent
How they voted for president:
Bush: 54 percent
Gore: 42 percent
Share of 2012 vote: 72 percent (down 9 percentage points)
How they voted for president:
Romney: 59 percent
Obama: 39 percent
___
SINGLE WOMEN
26 percent of U.S. population age 15 and older
Share of 2000 vote: 19 percent
How they voted for president:
Gore: 63 percent
Bush: 33 percent
Share of 2012 vote: 23 percent (up 4 percentage points)
How they voted for president:
Obama: 67 percent
Romney: 31 percent
___
MARRIED WOMEN
25 percent of U.S. population age 15 and over
Share of 2000 vote: 33 percent
How they voted for president:
Bush: 49 percent
Gore: 48 percent
Share of 2012 vote: 31 percent (down 2 percentage points)
How they voted for president:
Romney: 53 percent
Obama: 46 percent
___
WHITE MEN
31 percent of U.S. population
Share of 2000 vote: 38 percent
How they voted for president:
Bush: 60 percent
Gore: 36 percent
Share of 2012 vote: 34 percent (down 4 percentage points)
How they voted for president:
Romney: 62 percent
Obama: 35 percent
___
WHITES WITHOUT FOUR-YEAR COLLEGE DEGREES
46 percent of U.S. population age 25 and older
Share of 2000 vote: 46 percent
How they voted for president:
Bush: 57 percent
Gore: 40 percent
Share of 2012 vote: 36 percent (down 10 percentage points)
How they voted for president:
Romney: 62 percent
Obama: 36 percent

So there you go, population shifts do have an impact on how to target an audience.