"Wisconsin exits: Big night for Obama?"

Ben Smith:

Mike Allen e-mails:

Democratic officials with access to exit polls say Sen. Obama looks like he’s headed for a huge win in today’s Wisconsin primary. The polls could turn out to be off, as they have in the past. But the officials’ revelation reflects the chatter in the campaigns in advance of the 9 p.m. Eastern poll closing.

The party officials said that if the trends reflect in the interviews with hundreds of Badger State voters, the news out of the primary will be: Obama encroached deeply into three of Clinton’s core groups of voters — women, those with no college degree and those with lower incomes — while giving up none of his own. However, Clinton looked to be winning senior citizens, the officials said.

Stay tuned for real numbers.

Barack Obama