For a preview of what's to come with Biden on the ticket, today he fired back at McCain's multiple homes with a nice little gem.

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This was such a powerful way of working McCain's housing problem from this past week into the current economic situation facing America. Biden delivered it perfectly and the crowd loved it. You can bet the right wing is ready with a counter strike, but I don't think that will faze Biden.

Obama's and Biden's full speeches available here.