The Attention Gap
Jonathan Chait argues that Obama is winning high-education voters because they are high information voters. His reasoning:
"Among the one-third of Texas Democratic primary voters who watched all or most of the debate, Obama leads Clinton by 20 points," said CNN senior political analyst Bill Schneider.
"Among the 42 percent who followed news about the debate, Clinton and Obama are neck and neck. And among the one-quarter of Texas Democrats who paid no attention to the debate, Clinton leads Obama by nearly 20 points.
I made a similar point here. Clinton wins mainly among the uninformed, which is why she loses ground the more people pay attention. Her support is based largely on name recognition and vague associations with the pre-9/11 world.