Obama is losing edge
With 100 days to go before the election, US President Barack Obama appears to have a slight edge over his Republican rival Mitt Romney but he is still at the mercy of a stumbling economy.
Polls show the Democratic incumbent's lead is shrinking. According to a Wall Street Journal and NBC poll, only 36% of voters are confident that Obama can improve the economy whereas 43% prefer Romney, a multimillionaire former venture capitalist.
About 60% of Americans believe the country is on the wrong track.
An average of national polls compiled by non-partisan RealClearPoli tics.com shows Obama slightly ahead of Romney overall, with 46.4% of the vote to 45.1%.
His lead has narrowed from 3.6% at the beginning of this month.