As President Bush prepares to leave the White House, the BBC's North America editor Justin Webb examines his legacy.
On the home front, the American economy and judiciary look very different than they did in 2000, as does his Republican Party, but will these changes endure? Abroad, Bush has been nothing if not ambitious: attempting to spread democracy in the Middle East, fight Aids in Africa, expand NATO in eastern Europe and hunt down America's enemies wherever they may hide. The results may have been mixed, but would things have been any different had someone else occupied the White House?
Justin speaks to current and former world leaders, senior White House staffers, diplomats and others who worked with and sometimes against President Bush.