Whakaotihia te rerenga e whai ake nei: Ko George McGovern, he kaitōrangapū o te Pāti Manapori mai i Dakota ki te Tonga, i kōwhiria tuatahihia ki te United States House of Representatives hei tohu i te rohe 1 o South Dakota i te tau 1956. I whiriwhiria ano ia i te tau 1958, i mua i tana mahi angitu mo te United States Senate i te tau 1960 ki te Republican Republican Karl Earl Mundt. Whai muri i tana mahi i roto i te tari a John F. Kennedy hei kaiwhakahaere mo te kaupapa Food for Peace, i rere ano a McGovern mo te Senate, a, he iti noa iho te wikitoria ki a Senator Joseph H. Bottum. I te tau 1968, i whai a McGovern i te whakaingoatanga perehitini a te Rōpū Manapori i te Hui-tangata o Amerika i te tau 1968, engari kaore i angitu.
Ko te Democratic National Convention, a, i whiriwhiria ano ia ki te Whare Kaunihera mo te Kawana o mua o South Dakota Archie M. Gubbrud. I te tau 1972, i angitu a McGovern i tana kaupapa mo te whakaingoatanga perehitini a te Manapori, engari i ngaro te pooti ki te Perehitini o Richard Nixon. I whiriwhiria ano a McGovern ki te Whare Kaunihera i te tau 1974 mo te toa o te Pakanga o Vietnam a Leo K. Thorsness, engari i ngaro te pooti i te tau 1980 ki a James Abdnor. I whai angitu a McGovern mo te perehitini i te tau 1984 i nga pooti perehitini o te United States.