"If [Obama] wins his party’s nomination, the 46-year-old stands a shot against the 72-year-old John McCain. Even so, Obama would need to find a bloc of voters outside his coalition of blacks and yuppies. But the history of the post-1968 Democratic party suggests that Obama would struggle in wooing a new constituency. The national party has pursued the votes of young people, minorities, and liberated women first and foremost — and those of the white working class and Catholics second, if at all. As a result, only two of the party’s last seven presidential nominees have won. Obama could be the third winner, but he will need more than hope."