rian ▁Parliament . ▁From ▁ 1 8 9 9 , ▁he ▁was ▁a ▁member ▁of ▁the ▁Catholic ▁National ▁Party , ▁later ▁renamed ▁to ▁Sloven e ▁People ' s ▁Party . ▁In ▁the ▁Parliament , ▁he ▁served ▁as ▁president ▁of ▁the ▁Sloven e ▁Parliament ary ▁Club ▁from ▁ 1 9 0 7 . ▁Between ▁ 1 9 0 9 ▁and ▁ 1 9 1 1 , ▁he ▁was ▁president ▁of ▁the ▁largest ▁opposition ▁coal ition , ▁the ▁Sloven e ▁Union , ▁and ▁between ▁ 1 9 1 2 ▁and ▁ 1 9 1 4 , ▁he ▁was ▁president ▁of ▁the ▁Cro at ▁and ▁Sloven e ▁Parliament ary ▁Club . ▁In ▁ 1 9 1 2 , ▁he ▁was ▁named ▁Governor ▁of ▁the ▁Duch y ▁of ▁Car ni ola . ▁In ▁ 1 9 1 4 ▁Š uster š ič ▁called ▁for ▁violence ▁against ▁Ser bs ▁in ▁the ▁after math ▁of ▁the ▁Anti - Ser b ▁ri ots ▁in ▁Sar aje vo . ▁ ▁He ▁remained ▁Governor ▁of ▁the ▁Duch y ▁of ▁Car ni ola ▁until ▁October ▁ 1 9 1 8 , ▁when ▁he ▁left ▁for ▁Switzerland ▁after ▁a ▁dispute ▁in ▁the ▁Sloven e ▁People ’ s ▁Party : ▁in ▁contrast ▁to ▁party ' s ▁main stream , ▁he ▁rejected ▁the ▁creation ▁of ▁an ▁independent ▁State ▁of ▁Sloven es , ▁Cro ats ▁and ▁Ser bs , ▁favor ing ▁the ▁federal ization ▁of ▁the ▁Aust ro - H ung arian ▁Empire , ▁instead . ▁ ▁He ▁returned ▁to ▁Y ug oslav ia ▁in ▁December ▁