A Republican named Sarah Palin tried to convince Americans that she was running on a populist ticket.
But Joe Biden reminded the voters sitting at those kitchen tables, in those small houses with big mortgages, that the man who heads that ticket, a Republican named John McCain, is not on their side.
And, in so doing, Biden did not merely score a debating point. He did what a vice presidential candidate is supposed to do. He helped the man who heads his ticket, a Democrat named Barack Obama, stake a significantly stronger claim on the presidency.