President Barack Obama is within reach of the 270 electoral votes needed to win a second term as Republican challenger Mitt Romney's path to victory is narrowing, five weeks from US election day.
To overtake Mr Obama, Mr Romney would need to quickly gain the upper hand in nearly all of the nine states where the two are competing the hardest.
Polls show the President with a steady lead in many of them as Mr Romney looks to shift the dynamics of the race, starting with their first debate tomorrow night in Denver, Colorado.
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