The Definition of Petty

Here is the McCain campaign's response to today's speech by Barack Obama in Berlin, Germany.

While Barack Obama took a premature victory lap in the heart of Berlin, proclaiming himself a citizen of the world, John McCain continued to make his case to the American citizens who will decide this election. Barack Obama offered eloquent praise for this country, but the contrast is clear. John McCain has dedicated his life to serving and protecting America, Barack Obama spent an afternoon talking about.

Can McCain get any more petty and childish than he has been for the past week?