▁Del aware , ▁K irst en ▁Gill ibr and ▁of ▁New ▁York , ▁and ▁Car te ▁Good win ▁of ▁West ▁Virginia ▁were ▁cont ested ▁in ▁special ▁elections ▁on ▁the ▁same ▁day . ▁Republic ans ▁picked ▁up ▁six ▁seats , ▁but ▁Democr ats ▁retained ▁a ▁majority ▁in ▁the ▁Senate . ▁ ▁House ▁of ▁Representatives ▁elections ▁ ▁All ▁ 4 3 5 ▁voting ▁seats ▁in ▁the ▁United ▁States ▁House ▁of ▁Representatives ▁were ▁up ▁for ▁election . ▁Additionally , ▁elections ▁were ▁held ▁to ▁select ▁the ▁deleg ates ▁for ▁the ▁District ▁of ▁Columbia ▁and ▁four ▁of ▁the ▁five ▁U . S . ▁territ ories . ▁The ▁only ▁seat ▁in ▁the ▁House ▁not ▁up ▁for ▁election ▁was ▁that ▁of ▁the ▁Res ident ▁Commission er ▁of ▁Puerto ▁Rico , ▁who ▁serves ▁a ▁four - year ▁term ▁and ▁faced ▁election ▁in ▁ 2 0 1 2 . ▁Republic ans ▁won ▁the ▁nation wide ▁popular ▁vote ▁for ▁the ▁House ▁of ▁Representatives ▁by ▁a ▁margin ▁of ▁ 6 . 8 ▁points ▁and ▁picked ▁up ▁ 6 3 ▁seats , ▁taking ▁control ▁of ▁the ▁chamber ▁for ▁the ▁first ▁time ▁since ▁the ▁ 2 0 0 6 ▁elections . ▁This ▁represented ▁the ▁largest ▁single - e lection ▁shift ▁in ▁House ▁seats ▁since ▁the ▁ 1 9 4 8 ▁elections ▁and ▁the ▁largest ▁mid term ▁election ▁shift ▁since ▁the ▁ 1 9 3 8 ▁elections . ▁ ▁State ▁elections ▁ ▁G ubern atorial ▁elections ▁▁ 3 7 ▁state ▁and ▁two ▁territory ▁United ▁States ▁govern ors ▁were ▁up ▁for ▁election . ▁Republic ans ▁picked ▁up ▁a