Combination photo of Vice President Biden and Republican vice-presidential nominee Paul Ryan.

 
Combination photo of Vice President Biden and Republican vice-presidential nominee Paul Ryan.
Vice President Joe Biden (R) speaking in Charlotte, North Carolina September 6, 2012, and Republican vice-presidential nominee Paul Ryan, speaking in Tampa, Florida, August 29, 2012, are shown in this combination photo. U.S. vice presidential debates usually don't matter much, but the October 11 showdown between Democratic incumbent Joe Biden and Republican challenger Paul Ryan could be an exception. Democrats are counting on Biden to blunt the momentum of Republican presidential candidate Mitt Romney, who has gained ground after a strong debate performance against President Barack Obama last week. REUTERS/Mike Segar (L)/Jason Reed (R)