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翻译内容:Obama declares nomination victory
Barack Obama has declared himself "the Democratic nominee for President of the United States".
The claim came on the last day of primary season, as projections showed he had earned enough delegates to clinch the nomination.
Of the two states that voted, Montana was won by Mr Obama, while in South Dakota, Mr Obama’s rival Hillary Clinton was victorious.
In a speech to supporters, Mrs Clinton refused to concede the election.
Mr Obama’s speech was delivered in St Paul, Minnesota, where Republicans are set to hold their presidential nominating convention.
In the speech, he stressed that Mrs Clinton would play a part in his administration.
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