Photo Gallery Obama One Step Closer
Celebrations in North Carolina: Barack Obama supporters celebrate his victory in the state's primary.
Senator Obama secured 56 percent of the vote, beating Hillary Clinton by a clear margin of 14 points.
The win in North Carolina has boosted his chances of winning the Democratic nomination, as his delegate count lead looks increasingly unassailable.
His wife Michelle was in Raleigh, North Carolina, to celebrate the win.
A toast to the voters: Obama stops off in a bar in Raleigh during the campaign.
During recent campaigning he has been visiting neighborhoods and diners without advance notice to seem more ordinary.
Hillary Clinton supporters wait for the candidate in Indianapolis, Indiana.
As the first forecasts for the state are announced, they break out into cheers: Clinton is winning.
Clinton secured a narrow victory in the Indiana primary, winning 51 percent of the votes. Obama won 49 percent.
The win was seen as critical for Clinton to stay in the race.
But she failed to make inroads into Obama's lead. He now has secured 1,840 delegates to her 1,684.
Family support: Throughout the campaign Clinton has been supported by her husband Bill and daughter Chelsea.
Full speed ahead to the White House? Clinton visited the Indianapolis Motor Speedway during her campaign.
