Paul Ryan buttons at the conventions
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Republican veep Paul Ryan promises US 'turnaround'

30 August 2012 Last updated at 07:11 BST

Republican vice-presidential candidate Paul Ryan has promised a "turnaround" for America, in a prime-time speech to the party convention in Tampa, Florida.

The Wisconsin congressman said he and Republican White House nominee Mitt Romney would not duck the tough issues.

Steve Kingstone reports