More Exit Polls: "Exit polls of Wisconsin Democratic voters show Barack Obama continues to run strong with the white, female and working-class voters who have been the heart of Hillary Rodham Clinton's support so far in the presidential race," AP reports.

Preliminary figures show Obama with a slight lead among whites, and he and Clinton splitting the women's vote. Obama's strength also was coming from men and the young.

Solid support for Clinton was coming from less-educated...