John McCain has spent a lifetime in the service of his country, including twenty-two years as a naval aviator, two terms in the House of Representatives, and service in the U.S. Senate since 1986. Following his 2000 presidential campaign and the hard-fought passage of his campaign finance bill, John McCain reflects on a life in politics in his recent memoir Worth the Fighting for. A lifelong Republican, Senator McCain has broken with his party's mainstream on a number of issues in recent years. Does John McCain still consider himself a conservative? And why does McCain so often play the maverick?