ed ▁February ▁ 2 1 , ▁ 1 8 4 6 ▁ ▁| - ▁| ▁Texas ( 2 ) ▁| ▁col span = 2 ▁| ▁Texas ▁admitted ▁to ▁the ▁Union ▁December ▁ 2 9 , ▁ 1 8 4 5 , ▁and ▁remained ▁vac ant ▁until ▁February ▁ 2 1 , ▁ 1 8 4 6 ▁| ▁ ▁| ▁Sam ▁Houston ▁( D ) ▁| ▁Elect ed ▁February ▁ 2 1 , ▁ 1 8 4 6 ▁ ▁| - ▁| ▁New ▁Ham pshire ( 2 ) ▁| ▁ ▁| ▁Ben ning ▁W . ▁Jenn ess ▁( D ) ▁| ▁Lost ▁election ▁to ▁finish ▁the ▁term . W inner ▁elected ▁June ▁ 1 3 , ▁ 1 8 4 6 . ▁| ▁ ▁| ▁Joseph ▁C ille y ▁( L ) ▁| ▁Elect ed ▁June ▁ 1 3 , ▁ 1 8 4 6 ▁ ▁| - ▁| ▁North ▁Carolina ( 3 ) ▁| ▁ ▁| ▁William ▁H . ▁Hay wood , ▁Jr . ▁( D ) ▁| ▁Res igned ▁July ▁ 2 5 , ▁ 1 8 4 6 , ▁after ▁having ▁refused ▁to ▁be ▁instruct ed ▁by ▁the ▁North ▁Carolina ▁state ▁legisl ature ▁on ▁a ▁tar iff ▁question ▁| ▁ ▁| ▁George ▁E . ▁Bad ger ▁( W ) ▁| ▁Elect ed ▁November ▁ 2 5 , ▁ 1 8 4 6 ▁ ▁| - ▁| ▁South ▁Carolina ( 3 ) ▁| ▁ ▁| ▁George ▁Mc D uff ie ▁( D ) ▁| ▁Res igned ▁August ▁ 1 7 , ▁