Hillary Clinton enters today's Wisconsin primary needing a win to prevent Barack Obama from taking nine states in a row, and she's the perceived underdog because most polls that show her trailing in a close race. "If she gets blown out, it would put her in a very weak position for the nomination," says Darrell West, a political science professor at Brown University in Providence, RI. "Wisconsin is a state where she should run well, so everybody will be watching to see if she can actually pull it off."
