Career
He came to prominence when in June 2005 he opposed the internal election of Dragan Čović to the party presidency, claiming election fraud. In April 2006, the rift between Ljubić and the main party line escalated, and he led the formation of the Croatian Democratic Union 1990 (HDZ 1990). The new party was welcomed by the Roman Catholic bishop of Banja Luka Franjo Komarica and the president of the Croatian Democratic Union (HDZ) Ivo Sanader (also prime minister of Croatia at the time).
Ljubić was the candidate for the Croatian seat in the Presidency of Bosnia and Herzegovina, but came in third with 18% of the vote, after both Željko Komšić of Social Democratic Party BiH and Ivo Miro Jović of HDZ BiH. In 2014 he has left HDZ 1990 and he has given his support to HDZ BiH in the Bosnia and Herzegovina general election, 2014.