Politics / South Dakota ... And in S. Dakota Last primary is a toss-up By Dustin Lushing, Newser Staff Posted Jun 3, 2008 11:49 AM CDT Copied Sen. Barack Obama shakes hands as he enters a town hall meeting at Mississippi University for Women in Columbus, Miss. (AP Photo/Alex Brandon, File) Unlike most of this year's primaries, South Dakota is a genuine toss-up. Different polls have both Hillary Clinton and Barack Obama leading by double digits. Politico focuses on things to watch for: Split time zones: The western half of the state is an hour behind the eastern half; results won't be revealed until all polls close at 8pm CT. A late night: Ballots are transported to and counted at county auditor's offices, some more than 2 hours from polling places. The Native American vote: Native Americans are South Dakota's largest minority group, with 8.5% of the population. Sioux Falls and Minnehaha County: The state's biggest city and the surrounding county are vital to Democrats in the general election. Turnout: The secretary of state predicts 40% to 50% of the state's 195,000 registered Democrats; campaign aides expect even more. (More South Dakota stories.) Report an error