U.S. Senator Ted Kennedy (D-MA) waves as he arrives onstage after a tribute to his life and career at the 2008 Democratic National Convention in Denver, Colorado August 25, 2008. U.S. Senator Barack Obama (D-IL) is expected to accept the Democratic presidential nomination at the convention on August 28. REUTERS/Mike Segar (UNITED STATES) US PRESIDENTIAL ELECTION CAMPAIGN 2008 (USA)