Democratic Presidential hopeful, Sen. Barack Obama, D-Ill., right, and his wife Michelle greet supporters in Raleigh, N.C., after winning the North Carolina Democratic presidential primary Tuesday, May 6, 2008.
Democratic presidential hopeful Sen. Hillary Rodham Clinton, D-N.Y., addresses her supporters as her daughter Chelsea, left, and her husband former President Bill Clinton watch during her Indiana Primary night rally Tuesday, May 6, 2008, in Indianapolis. Clinton narrowly won in Indiana.
Volunteer Deede Blum, left, of Merrillville, Ind., and election clerk Andwanita Holloway of Gary, Ind., scan absentee ballots by hand Tuesday night May 6, 2008 at the Lake County Government Center in Crown Point.
Supporters cheer for Democratic presidential hopeful, Sen. Barack Obama, D-Ill., before a primary election night rally in Raleigh, N.C., Tuesday, May 6, 2008.
From left, precinct worker Pat Bartels helps Julie Jacobs sign in to vote as she balances her daughter Brooklyn, 1, on Tuesday, May 6, 2008, at the YMCA in Garrett, Ind. Voters in Indiana and North Carolina crowded polling places Tuesday as they sought to settle the largest remaining contests in the Democratic presidential nomination struggle between Barack Obama and Hillary Rodham Clinton.
Poll worker Jean Murphy, left, checks the voter ledger as fellow worker, Raymond Phillips plays his guitar as they wait for the next voter in the presidential primary inside the Egypt-Ramseytown Volunteer Fire Dept. in Ramseytown, N.C., Tuesday May 6, 2008.
Voters cast their primary election ballots inside the Stockton Farm Country Store Cafe near Weaverville, N.C., Tuesday, May 6, 2008.
Naomi Cannon leaves Saint Monica and Saint Luke Catholic Church after voting Tuesday, May 6, 2008 in Gary, Ind.
Duell Hinson carries his ballot for the North Carolina primary election as he walks past voting booths at the Unionville Volunteer Fire Department polling place in Unionville, N.C., Tuesday, May 6, 2008.
North Carolina voters mark their ballots during the primary election at the Cameron Village Library in Raleigh, N.C., Tuesday, May 6, 2008.
Iris Mettrey reads a voter guide as she waits for the North Carolina primary polls to open at the Cameron Village Library in Raleigh, N.C., Tuesday, May 6, 2008.
Laura Hensey, left, has her daughter Erin, 4, help her in the voting booth as she cast her ballot in the North Carolina Primary at the Cameron Village Library in Raleigh, N.C., Tuesday, May 6, 2008.
Democratic presidential hopeful Sen. Hillary Rodham Clinton, D-N.Y., looks at a racing helmet presented to her by driver Sarah Fisher, left, during a campaign event at the Indianapolis Motor Speedway in Indianapolis, Ind. Tuesday, May 6, 2008, the day of the Indiana primary election.
Democratic presidential hopeful, Sen. Barack Obama, D-Ill., right, and Rick Jones, 59, chat while eating breakfast at Four Seasons Family Restaurant in Greenwood, Ind., Tuesday, May 6, 2008, as voters in both Indiana and North Carolina crowd polling places Tuesday for the states' primary elections.