President Hugo Chavez says he is willing to talk with Colombia's rebel FARC for the release of three US defense contractors.
She faces heavy pressure in Texas and Ohio primaries.
Results in the Granite State mean frontrunners in both parties will continue to duke it out for the nomination.
A majority of independent voters in Tuesday's presidential primary chose one of the Democratic candidates. Those who voted on the GOP side helped boost McCain to victory.
Lake levels reached record lows last year, and the region worries that fast-growing states and communities will try to grab its water.
Caucus results shake up the race for the White House in both parties.
An Iowa Democrat has 30 minutes to rustle up five more votes for her candidate.