▁en act ment ▁of ▁Article ▁IV , ▁section ▁ 1 8 , ▁of ▁the ▁Constitution ▁of ▁Iowa , ▁the ▁duties ▁of ▁Iowa ' s ▁Lieutenant ▁Governor ▁no ▁longer ▁include ▁pres iding ▁over ▁the ▁state ▁Senate . ▁ ▁The ▁Major ity ▁Le ader ▁was ▁instead ▁the ▁sitting ▁Senate ▁member ▁who ▁led ▁the ▁larger ▁party . ▁Following ▁ 1 9 9 1 , ▁the ▁President ▁of ▁the ▁Iowa ▁Senate ▁would ▁become ▁a ▁sitting ▁member ▁of ▁the ▁Senate . ▁▁ ▁Following ▁the ▁previous ▁election ▁in ▁ 1 9 8 8 , ▁Democr ats ▁had ▁control ▁of ▁the ▁Iowa ▁state ▁Senate ▁with ▁ 3 0 ▁seats ▁to ▁Republic ans ' ▁ 2 0 ▁seats . ▁▁ ▁To ▁take ▁control ▁of ▁the ▁chamber ▁from ▁Democr ats , ▁the ▁Republic ans ▁needed ▁to ▁net ▁ 6 ▁Senate ▁seats . ▁▁ ▁Democr ats ▁kept ▁their ▁control ▁of ▁the ▁Iowa ▁State ▁Senate ▁following ▁the ▁ 1 9 9 0 ▁general ▁election , ▁with ▁Democr ats ▁holding ▁ 2 8 ▁seats ▁and ▁Republic ans ▁having ▁ 2 2 ▁seats ▁after ▁the ▁election ▁( a ▁net ▁gain ▁of ▁ 2 ▁seats ▁for ▁the ▁Republic ans ). ▁ ▁Sum mary ▁of ▁Results ▁NOT E : ▁The ▁ 2 5 ▁even - number ed ▁districts ▁did ▁not ▁have ▁elections ▁in ▁ 1 9 9 0 ▁so ▁they ▁are ▁not ▁listed ▁here . ▁ ▁Source : ▁ ▁D etailed ▁Results ▁Rem inder : ▁Only ▁odd - number ed ▁Iowa ▁Senate ▁seats ▁were ▁up ▁for ▁election ▁in ▁ 1 9 9 0 ; ▁therefore , ▁even -