With just days to go before the US election, American politics is a battle of small margins. It will go down to a few thousand votes, maybe even a few hundred, in a relatively small number of precincts in seven battleground states – a tiny number set against, say, the 150 million votes that will be cast.
In the mostly winner-takes-all system of the electoral college, where a single vote could throw an entire state behind one candidate, and in a tight battle as now, you can see why the party managers fret about every little thing.
