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Romney accuses Obama of 'apology tour'

23 October 2012 Last updated at 04:09 BST

At the final Presidential debate in Florida, Mitt Romney accused President Obama of embarking on an 'apology tour' which emboldened Iran's nuclear ambitions.

The Republican nominee said the Iranian regime saw American weakness rather than strength from the beginning of Mr Obama's administration.

Mr Obama described his opponent's claim as the "biggest whopper" of the campaign, insisting that he had helped introduce crippling sanctions on Iran.

For more of the BBC's coverage of the 2012 election check out our special report here.