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Two weeks ago at the Fox News/Wall Street Journal debate in Myrtle Beach, S.C., I asked each GOP presidential candidate some pointed questions about the racial politics that will play a big role in the presidential campaign.

Race is always a trigger in politics, but now a third of the nation are people of color — and their numbers are growing. With those minorities solidly in the Democratic camp and behind the first black president, the scene is set for a bonanza of racial politics.