Tadic and outgoing Prime Minister Zoran Zivkovic are competing for the post, vacant since the March assassination of former Prime Minister Zoran Djindjic.
Tadić i odlazeći premijer Zoran Živković kandidati su za mesto lidera partije koje je ostalo upražnjeno nakon ubistva predsednika stranke i premijera Srbije Zorana Đinđića u martu.