Dragoljub Mićunović, the DOS candidate, performed poorly in the 2003 presidential election and was even beaten by 11% by Tomislav Nikolić, candidate of the nationalist Serbian Radical Party. Since only 38% of the electors voted, the presidential election was cancelled for the third time in a row. Therefore, the DOS was disbanded on 18 November 2003. The disbanding was mostly decided by the Democratic Party, the party founded by the then Prime Minister Zoran Đinđić, who was assassinated on 12 March 2003.