anyway ... found this ...
Politics
Presidential elections results Year Republican Democratic
(The first number is R, the second, D ... the chart didn't copy/paste)
2004 - 59.91% - 232,584 .... 38.44% 149,244
2000 - 60.3% - 190,700 ......37.56% 118,804
1996 - 46.49% - 150,543 .... 43.03% 139,333
1992 - 40.66% - 136,718 .... 37.14% 124,888
1988 - 52.85% - 165,415 .... 46.51% 145,560
1984 - 63.0% - 200,267 ..... 36.53% 116,113
1980 - 60.53% - 198,343 .... 31.69% 103,855
1976 - 50.39% - 151,505 .... 48.91% 147,068
1972 - 54.15% - 166,467 .... 45.52% 139,945
1968 - 53.27% - 149,841 .... 41.96% 118,023
1964 - 44.39% - 130,108 .... 55.61% 163,010
1960 - 58.21% - 178,417 .... 41.79% 128,070
South Dakota politics are generally dominated by the Republican Party, and the state has not supported a Democratic presidential candidate since 1964 — especially notable when one considers that George McGovern, the Democratic nominee in 1972, was from South Dakota. In 2004, George W. Bush won the state's three electoral votes with 59.9% of the vote.[18] Additionally, a Democrat has not won the governorship since 1978. As of 2006, Republicans hold a 10% registration advantage over Democrats and hold majorities in both the state House of Representatives and Senate.[19][20][21] All but one of the current statewide elected officers are Republicans.
Despite the state's general Republican and conservative leanings, Democrats have found success in various state-wide elections, most notably in those involving South Dakota's congressional representatives in Washington. Two of the three current members of the state's congressional delegation are Democrats, and until his electoral defeat in 2004 Senator Tom Daschle served as both senator for South Dakota as well as the senate minority (briefly majority) leader.[22]
Contemporary political issues in South Dakota include the legality of the state lottery, South Dakota's relatively low rankings in education spending (particularly teacher pay), and recent legislative attempts to ban abortion in the state.[23][24][25]
I don’t know his politics, but I would guess that he must be something of a DINO in order to get elected in SD. So, if someone ‘helps’ him vote, they may not be voting the way he would have, otherwise.