U.S. Democratic Party Presidential candidate Barack Obama (D-IL) speaks with supporters during a campaign stop at the Pinkerton Academy in Derry , New Hampshire, January 6, 2008. REUTERS/Shannon Stapleton (UNITED STATES)
Democratic presidential hopeful, Sen. Barack Obama D-Ill., speaks at a rally, Sunday, Jan. 6, 2008 in Derry, N.H. (AP Photo/M. Spencer Green)
Democratic presidential hopeful Sen. Barack Obama, D-Ill., addresses New Hampshire voters during a campaign event at Exeter High School in Exeter, NH., Sunday, Jan. 6, 2008. After Obama's big win in the Iowa caucuses last week he is campaigning for New Hampshire's first in the nation presidential primary on Tuesday Jan. 8, 2008. (AP Photo/Stephan Savoia)
Democratic presidential hopeful Sen. Barack Obama, D-Ill., addresses voters during a campaign event at Exeter High School in Exeter, NH., Sunday, Jan. 6, 2008. After Obama's big win in the Iowa caucuses last week he is campaigning for New Hampshire's first in the nation presidential primary on Tuesday Jan. 8, 2008. (AP Photo/Stephan Savoia)
Supporters listen to Democratic presidential hopeful, Sen. Barack Obama D-Ill., speaks at a rally, Sunday Jan. 6, 2008 in Salem, N.H. (AP Photo/M. Spencer Green)
Democratic presidential hopeful, Sen. Barack Obama, D-Ill., greets New Hampshire voters as he enters a campaign event at Exeter High School in Exeter, NH., Sunday, Jan. 6, 2008. After Obama's big win in the Iowa caucuses last week he is campaigning for New Hampshire's first in the nation presidential primary on Tuesday Jan. 8, 2008(AP Photo/Stephan Savoia)