During the Republican primaries, whites accounted for 90 percent of all votes except Florida (83 percent) and Arizona (89 percent). In 2010, Republicans ran especially well with older whites, capturing fully 63 percent of them, exit polls found.  This November, though, the electorate almost certainly will be considerably younger and more tilted toward minorities than it was in 2010. As the minority share of the population continues to grow, President Obama's reelection campaign projects that whites will cast about 72 percent of the votes in the 2012 general election.[MORE] and [MORE]  

From [HERE] The Republican party is a racial identity party. It is designed to appeal to white people as white people... not as union-members or as unemployed people or as home-owners... as white people. 

It is a crude racial-identity party and the numbers bear that out. It is an almost exclusively white party. Many white people vote Democratic, but the Republican party is pretty close to all white. (A fact that is soft-pedaled in out national dialog because it makes the modern Republican party sound like a racist institution, which it is. 

And many millions of white people vote Republican, against all real self-interest, because they perceive it as "the white thing to do." Because the Republican party presents itself as "the white thing to do."  That is not a critique, it is a fact of contemporary political life. [MORE] 

The U.S. Census' new projections predict that groups that are now labelled minorities will form the greater part of the country's population by 2042. [more] Politically this may mean the end of the Republican Party as a national governing institution. As explained by Republican Pat Buchanan, "Republicans now depend on the vanishing majority for fully 90 percent of their votes in presidential elections, while the Democratic Party wins 60 to 70 percent of the Asian and Hispanic vote and 90 to 95 percent of the black vote.The Democratic base is growing inexorably, while the Republican base is shriveling.

Already, California, Illinois and New York are lost. The GOP has not carried any of the three in five presidential elections. When Texas – where whites are a minority and a declining share of the population – tips, how does the GOP put together an electoral majority?" [MORE]