US elections: Reflections on a hard fought campaign
When the 2012 US presidential election is over some estimates suggest the rivals will have spent a combined total of $2.5bn (£1.5bn) - about $20 (£12) per vote.
But was it money well spent of are voters just suffering election overload?
Bill Turnbull looks back at a long, often vicious, race for the White House.
- From the section US & Canada