Democratic Presidential hopeful and U . S . Senator Barack Obama shakes hands with supporters after a campaign rally at Indiana University Southeast in New Albany , Indiana , USA , 23 April 2008 . Obama lost in the Pennsylvania primary to rival Senator Hillary Clinton . The Indiana primary will be held on 06 May . EPA / JOHN SOMMERS II < 저작권자 ⓒ 2007 연 합 뉴 스 . 무단 전재 - 재 배포 금지 . >