广告与金主投入刷新纪录,竞选叙事争夺加剧AdImpact称中期选举广告支出已超过100亿美元,最终可能达116亿美元;德州参院竞选广告预订额达5亿美元,Musk近三个月向共和党团体捐款超过2.5亿美元。民主党近期大量投放提及特朗普的广告,显示两党在关键战场以特朗普与生活成本等框架争夺注意力,但投入规模尚不能证明改变了选民选择。Sources (2)Trump wants the midterms to be all about him. Based on Democrats' ads, they are happy to obligepbs.org2026 midterm could be the most expensive ever: AdImpactthehill.comUpdated Oct 16, 2026