In previously unseen footage, Michelle Obama has described how she had to consider her family's future and be sure her questions were answered before she supported her husband's bid for the US presidency.

Intimate family moments, along with footage of Barack Obama and his election team, were captured by film-makers Amy Rice and Alicia Sams, during his journey to the White House in 2008.

By The People: The Election Of Barack Obama, Saturday 9 January at 1930 GMT on BBC Two.

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