WELL, AN UPDATE ON THE RACE FOR THE WHITE HOUSE THIS MORNING. ABC NEWS HAS JUST ANNOUNCED THAT PHILADELPHIA WILL BE THE LOCATION FOR THE SEPTEMBER 10TH PRESIDENTIAL DEBATE BETWEEN KAMALA HARRIS AND DONALD TRUMP. >> ABC IS HOSTING THE DEBATE AT THE NATIONAL CONSTITUTION CENTER ON INDEPENDENCE MALL. WORLD NEWS TONIGHT ANCHOR DAVID MUIR AND ABC NEWS PRIME LIVE ANCHOR LINSEY DAVIS WILL SERVE AS