Since March, Obama has become increasingly competitive with McCain among men and women with less formal schooling, as well as among white and nonwhite voters who did not attend school beyond 12th grade. Among each of these subgroups of voters, the Obama-McCain gap has moved 6 or 7 points in Obama's favor over the past four months.
Obama still trails among whites with a high school education or less by a significant 17-point margin. But that was a 23-point margin in March. The gap is narrowing.