Democratic Senator Bob Casey and Republican challenger Tom Smith had their first and only debate Friday. The media reports the exchange was mostly cordial, with accusations not straying far from ammunition both campaigns have been using during the race. Smith accuses Casey of staying close to the Obama agenda, and Casey accuses Smith of a tea partier with a radical agenda. The recording will be made available to T.V. stations between Sunday afternoon and Tuesday. The third party candidate, Libertarian Rayburn Smith from Clarion County, did not participate.