Does John McCain have kids serving in the war in Iraq?

Yes. One attends the US Naval Academy and the other is a Marine in Iraq. Here is an excerpt from a Boston Globe article: Although his youngest sons are in the military - Jack, 21, attends the US Naval Academy and Jimmy, 19, is a Marine stationed in Iraq - John McCain is loath to invoke their names when he defends his foreign policy positions, even once when Jimmy was sitting in the audience before deployment. And the article's URL: http://www.boston.com/news/nation/articles/2007/12/27/mccains_children_avoid_the_limelight/