Barack Obama and Mitt Romney
Media playback is unsupported on your device
Video

US Presidential election: 100 days to polls

Today marks a milestone in the US Presidential election. It's 100 days until voters go to the polls to choose their President.

Recent surveys suggest a tight race between Barack Obama and his Republican challenger, Mitt Romney with the contest set to be won and lost in a handful of battleground states.

North America Editor Mark Mardell reports.

  • 16 Jan 2013