Republican vice presidential candidate Paul Ryan says Barack Obama fell "woefully short" as president by failing to keep promises he made as a candidate four years ago.

Ryan painted the incumbent Democrat as a big-government liberal on Thursday, hours before Obama delivers his acceptance speech at the Democratic convention in North Carolina.

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Ryan says Obama failed to reduce home foreclosures, raise incomes and reduce the national debt.

He addressed hundreds of supporters inside an airport hangar in Colorado, a swing state where Obama delivered his convention speech in 2008.


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