Barack Obama and Hillary Clinton traded fresh attacks and touted their economic leadership yesterday as they took their Democratic presidential duel to Wisconsin.
Mrs Clinton made her first campaign appearance in Wisconsin and promptly announced she would cut her state campaign schedule by a full day and leave tomorrow, raising questions about her confidence in her chances in Tuesday's primary.
Her husband, former President Bill Clinton, has been in the state and her daughter, Chelsea, will stay on to campaign.
Mr Obama, a first-term Illinois senator, has beaten Mrs Clinton in the last eight contests and gained the upper hand in their battle to become their party's White House nominee in November's election.
Mr Obama has spent four days in Wisconsin since his last round of victories on Tuesday and he has a slight lead in state opinion polls. Mrs Clinton has focused on March 4th votes in Ohio and Texas, counting on victories there to revive her hopes.
Mrs Clinton kept up her criticism of Mr Obama for refusing to debate her before the Wisconsin vote. She aired two ads earlier in the week hitting him on the issue.
"There are real differences here that we deserve to explore and the people of Wisconsin deserve to have answers to their questions," the New York senator said.
Mr Obama launched his own advertisement responding to the attacks. The two are scheduled to debate on Thursday in Texas, and the week after that in Ohio.