Hillary Clinton has told her supporters to unite behind Barack Obama as she suspended her campaign to become the Democratic nominee for US president.
She was grateful to "all who poured [their] hearts into this campaign" and urged them to "take our energy, our passion" and help elect Barack Obama.
Mr Obama praised Mrs Clinton's "valiant campaign" and was "thrilled and honoured" to secure her support.
He will face the Republican presumptive nominee, John McCain, in November.
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