Mesic's relations with the Catholic Church's hierarchy were under constant tension, as he criticized their involvement in politics and they criticized him claiming he is not protecting national interests.
Relaţiile lui Mesic cu ierarhia Bisericii Catolice au fost permanent tensionate, acesta emiţând critici cu privire la implicarea bisericii în politică, iar aceasta criticându-l şi susţinând că nu apără interesele naţionale.