South Dakota's Senate contest features Republican incumbent Mike Rounds facing independent Brian Bengs after the Democratic nominee withdrew, with recent polling averages showing leads of roughly seven to eleven points. New Mexico's race pits Democratic incumbent Ben Ray Luján against Republican Larry Marker, where surveys indicate double-digit margins near seventeen points. Both states lean toward their respective parties in a low-profile midterm environment with limited outside spending, and expert ratings classify each as safe or solid for the favored side. The narrower projected margin in South Dakota, driven by its red-state fundamentals and the independent candidacy dynamic, underpins trader consensus that it represents the tighter matchup heading into the November general election.
2026年中期选举计划于2026年11月3日举行。 如果 South Dakota 按照既定安排举行的美国参议院选举中,未经四舍五入的胜选差距小于 New Mexico 的参议院选举胜选差距,则此市场的结果为“South Dakota”。 如果 New Mexico 按照既定安排举行的美国参议院选举中,未经四舍五入的胜选差距小于 South Dakota 的参议院选举胜选差距,则此市场的结果为“New Mexico”。 如果两个州的胜选差距相同,此市场将以 50-50 判定。 就本市场而言,“胜选差距”定义为得票数排名第一和第二的候选人所获有效票百分比之间的绝对差值。每位候选人所获有效票的百分比,将通过用得票数排名前两位的候选人各自获得的有效票总数,除以该次选举所有有效票总数来确定。 对于包含决选、排序选择投票或其他多轮投票的选举,相关胜选差距以决定胜者的那一轮为准。 如果截至 2027年3月31日 仍无法确定相关的胜选差距,则就本市场而言,该州的胜选差距将视为 0%。 本市场的结算来源将汇总所有负责认证全州选举的相关州选举机构资料;不过,也可以采用可信报道形成的共识。
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