WASHINGTON (Reuters) - Barack Obama captured the Democratic presidential nomination on Tuesday, capping a rapid rise from political obscurity to become the first black to lead a major U.S. party into a race for the White House.

A surge of support from uncommitted delegates helped give Obama the 2,118 votes he needed to clinch the nomination and defeat rival Hillary Clinton, a former first lady who entered the race as a heavy favorite.

Obama will be crowned the Democratic nominee at the convention in August and will face Republican John McCain in November’s election to choose a successor to President George W. Bush.

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