Claim: Stjepan Mesic  never held office while Bernardo Jurlina of the HDZ party was Deputy Prime Minister from 31 May 1990 – 4 March 1991.
Evidence: Stjepan "Stipe" Mesić (pronounced [stjêpaːn stǐːpe měːsit͡ɕ; born 24 December 1934) is a Croatian lawyer and politician who served as President of Croatia from 2000 to 2010. Before serving two five-year terms as president, he was Prime Minister of SR Croatia (1990) after the first multi-party elections, the last President of the Presidency of Yugoslavia (1991) and consequently Secretary General of the Non-Aligned Movement (1991), as well as Speaker of the Croatian Parliament (1992–1994), a judge in Našice and mayor of his hometown of Orahovica. Mesić was a deputy in the Croatian Parliament in the 1960s, and was then absent from politics until 1990 when he joined the Croatian Democratic Union (HDZ), and was named President of the Executive Council (Prime Minister) of the Socialist Republic of Croatia (then still a constituent republic of the SFR Yugoslavia) after HDZ won the elections. 
30 May 1990 24 August 1990 Stjepan Mesić Bernardo Jurlina
Mate Babić
Milan Ramljak Stjepan Mesić HDZ Prime Minister 30 May – 24 August 1990 Bernardo Jurlina HDZ Deputy Prime Minister 31 May 1990 – 4 March 1991