US President Barack Obama
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Obama seeks to fire up faithful

US President Barack Obama is set to make a prime-time pitch for re-election on the final day of the Democratic convention in North Carolina.

Accepting his party's re-nomination, Mr Obama is expected to reach out both to undecided voters and his party base.

On Wednesday, ex-President Bill Clinton told the gala no-one could have fixed in four years the economic "mess" Mr Obama inherited from the Republicans.

Republican Mitt Romney challenges Mr Obama for the White House in November.

BBC's Mark Mardell reports from the convention.

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