TALK OF HILLARY EXIT ENGULFS CAMPAIGNS Mon Jan 07 2008 09:46:28 ET Facing a double-digit defeat in New Hampshire, a sudden collapse in national polls and an expected fund-raising drought, Senator Hillary Clinton is preparing for a tough decision: Does she get out of the race? And when?! "She can't take multiple double-digit losses in New Hampshire, South Carolina and Nevada," laments one top campaign insider. "If she gets too badly embarrassed, it will really harm her. She doesn't want the Clinton brand to be damaged with back-to-back-to-back defeats." Meanwhile, Democrat hopeful John Edwards has confided to senior staff that...