As it happened: Election reaction

• Five challenges facing the president

  Now that the election has passed, what are top five challenges in the president's in-tray?

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• Exit polls explain Obama win

• What Obama must do next

• What next for US Republicans?

• Women are the new majority

Background

• Obama profile

• Romney profile

• Meet the Veeps

• Candidates' lives in pictures

• The power of the Latino vote

• Levittown: A suburb at 60

Mark Mardell

• Turkey has European Union over a barrel

Jonny Dymond

• NSA 'debates' amnesty for Snowden

Video

• Moment Obama won Watch

• Romney admits electoral defeat Watch

• Crowds celebrate as Obama re-elected Watch

• Millions of Americans turn out to vote Watch