An important aspect of the presidential race so far has been the generational divide, with Barack Obama doing very well with younger voters and Hillary Clinton drawing strong support from those who are older. A similar split can be expected in a general election race between Senator Obama and John McCain.

However the election ultimately turns out, the Obama campaign has tapped into a constituency that holds powerful implications for the future of American politics. The youngest of these voters, those ranging in age from roughly the late teens to the early 30s, are part of the so-called millennial generation.

This is a generation that is in danger of being left out of the American dream  the first American generation to do less well economically than their parents. And that economic uncertainty appears to have played a big role in shaping their views of government and politics.

A number of studies, including new ones by the Center for American Progress in Washington and by Demos, a progressive think tank in New York, have shown that Americans in this age group are faced with a variety of challenges that are tougher than those faced by young adults over the past few decades. Among the challenges are worsening job prospects, lower rates of health insurance coverage and higher levels of debt.