MANCHESTER, N.H. -- With little time to recover from Iowa's presidential caucuses before Tuesday's New Hampshire primary, a bruised Hillary Clinton faces her nightmare scenario: Barack Obama could unite anti-Clinton Democrats to seal the party's nomination in coming weeks. Seven in 10 Iowa Democrats in Thursday night's caucuses supported someone other than New York's Sen. Clinton. Among those who showed up supporting the second-tier candidates, very few listed her as their second choice. In the end, she finished third, losing not just to Sen. Obama but, by a sliver, to John Edwards, the former North Carolina senator who had made...