A question for Sen. Kerry

What's the Kerry response to this question Sunday night, if asked by any of his opponents:

John, you and I know how hard it is to do the work of the American people in a Republican Congress. I think you would agree with me that we not only have to elect a Democratic president, we have to elect Democrats to the Congress this year to restore the One America our party stands for. I think you would also agree with me that members of Congress cast votes, take stands, and then tell people we're for this, or for that, based on our votes. In a Republican Congress, sometimes that's all we've got. But my question for you, John, is can you identify one aspect of an average American's life that is different today for your having been in the Senate for 19 years?"

Seriously.  What's the answer?