[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2008/POLITICS/07/24/obama.speech/art.obama.ap.jpg caption="Sen. Barack Obama addresses a crowd Thursday at the Victory Column in Berlin, Germany."]
WASHINGTON - Barack Obama's electoral rival is John McCain, but Obama's overseas trip this week has given heartburn to another Republican - President Bush.
In stop after stop across the Middle East and Europe, Obama was embraced as the man whose promise of change meant a change from Bush: on Iraq, Mideast peace, the treatment of terrorism suspects, climate change, alliance relations and more.
The tour has brought into focus how world leaders already are positioning themselves for a new American president.
Obama's debut appearance on the international stage was the most vivid demonstration yet that the world is moving beyond the Bush era, even while the White House works frantically in its last six months to salvage what it can of its foreign policy agenda.