* Biden is [[Catholic]], and Obama is weak with that key voting bloc; however, the [[Catholic Church]] may take offense at Biden's pro-[[abortion]] positions (see below).
* Biden is [[Catholic]], and Obama is weak with that key voting bloc; however, the [[Catholic Church]] may take offense at Biden's pro-[[abortion]] positions (see below).
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* Biden was born in [[Pennsylvania]], a must-win state for Obama where he is weak;<ref>Hillary Clinton defeated Obama by a wide margin in the primary; in August polls show Obama leading McCain by an average of only 5.8% [http://www.realclearpolitics.com/epolls/2008/president/pa/pennsylvania_mccain_vs_obama-244.html RealClearPolitics Pennsylvania Tracking]</ref> however, Biden's roots are in the rural northeastern part of the state.
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* Biden was born in [[Pennsylvania]], a must-win state for Obama where he is weak;<ref>[[Hillary Clinton]] defeated Obama by a wide margin in the [[Pennsylvania]] primary; in August polls show Obama leading McCain by an average of only 5.8% [http://www.realclearpolitics.com/epolls/2008/president/pa/pennsylvania_mccain_vs_obama-244.html RealClearPolitics Pennsylvania Tracking]</ref> however, Biden's roots are in the rural northeastern part of the state.
* Biden's son is going to [[Iraq]], which may help rehabilitate Obama's image as anti-military; however, Biden himself never served.
* Biden's son is going to [[Iraq]], which may help rehabilitate Obama's image as anti-military; however, Biden himself never served.