Tuhia he tomokanga mō tēnei rārangi - I te tau 1910, i whakataetae ia mō te kaitiaki putea kāwanatanga ki te kaitono Republican a Gunder Olson, ā, i te marama o Hepetema i tohua ia hei tumuaki tuarua o te rōpū Democratic kāwanatanga, engari i hinga ia. Whai muri i te wehenga atu o te Perehitini o te Komihana o mua a Arthur LeSueur i te Mei 17, 1911, i whakahaerehia he pooti motuhake i te Pipiri 6, i reira i hinga ai a Halvorson i a Dorr H. Carroll me Peter Vandenoever me nga pooti 232 ki te 196 me nga pooti 94. I te 1912, 1914, me te 1918, i rere a Halvorson mo te rohe tuatoru o North Dakota, engari i ngaro ia wa me tana whakaaturanga pai ko te 31.16%. I mahi ia hei karere ki te 1916 Democratic National Convention
I hoatu tana tautoko ki te peresideni o nāianei a Woodrow Wilson.