The final stretch: Barack Obama presses the flesh at a rally in Cincinnati, Ohio on Sunday (AP)

Welcome to the penultimate summary of media coverage of the 2012 US election campaign on a day when geography means nothing and psephology everything as the candidates make their final push for the few, surely very few, remaining undecided voters.

The polls on this last day of campaigning suggest President Barack Obama has a slight edge in the states he needs to hold – Ohio, Wisconsin, Iowa, Nevada – to keep the White House, but his opponent Mitt Romney is easily close enough for polls to be wrong and an upset to be possible.

RealClearPolitics.com shows “Obama (D)” ahead of “Romney (R)” by a sliver – half of a percentage point. Five national polls on Sunday gave the following margins: Obama +3; Obama +1; Obama +1; Tie; Tie. The possibility, last seen in 2000, of the victor losing the popular vote but winning in the electoral college, remains open. Read more