The political face of America is changing as immigrant groups, legal and illegal, build our population to at least 310 million - and rising.
As the presidential election of 2012 approaches, the prime question will be turnout, that is, which voting bloc will respond to which candidate.
Will the giant demographic trends already in place benefit President Barack Obama and his Democrats sufficiently to overcome the negative effects of joblessness and unresolved wars in remote lands?
The basic constituencies of the Democratic Party are minorities, working women, educated voters in urban areas, and younger voters. They are growing at a faster rate than other blocs.
Republicans achieve their largest voting potential among the white and upper income voters where Obama’s support has been weakening. These Republican blocs have been shrinking as a share of the overall electorate.
However, Democratic turnout dropped in the 2010 congressional election as the higher percentage of white voters and senior citizens overcame the Democrats demographic advantage.
Working-class white voters will be the key to the 2012 presidential election. US unemployment numbers will be the crucial figures - not the frantic and ineffective attempts to rebuild foreign societies thousands of miles from American homes.