# 最高法院以5比4裁定维持邮寄选票宽限期，共和党在中期选举前遭遇败绩
> 巴雷特大法官与三位保守派同僚分歧，支持密西西比州法律，允许在选举日前投出的选票于其后到达时仍计入有效；裁决使其他17个州的类似规定得以保留

**Meta:** type: event · date: 2026-06-29 · heads: 谁说了算, 什么崩了 · 5 takes · 2 lenses · 1 regions

## 摘要
最高法院6月29日在沃森诉共和党全国委员会案中以5比4裁定，各州可对在选举日前盖有邮戳的邮寄选票在选举日后到达时予以统计，从而维持了密西西比州的宽限期法律，并在2026年11月中期选举前事实上支持了其他17个州的类似规定。艾米·科尼·巴雷特大法官与阿利托、托马斯、戈萨奇和卡瓦诺大法官分道扬镳，撰写了由首席大法官罗伯茨及三位自由派大法官加入的多数意见。巴雷特认为，联邦法律中关于"选举日"的规定设定的是投票截止期限，而非选票到达期限。提起本案挑战的共和党全国委员会此前主张，统计迟到选票会稀释按时投票者的票权。

## 为何重要
该裁决在关键中期选举周期到来之际，维护了18个管辖区（多数由民主党主导）的投票渠道。与数小时前发布的丽莎·库克案裁决相结合，这一罗伯茨-巴雷特联合自由派的特殊组合再度出现，表明保守派阵营内部正在选择性地对选举和美联储问题上的强硬右翼立场踩下刹车。

## Regional takes (batched by bias / lens)

### unlabelled
- **US Supreme Court, Watson v. Republican National Committee, No. 24-1260 (opinion PDF)** (United States, en) — CBS新闻报道了沃森诉共和党全国委员会案5比4的裁决。巴雷特大法官加入首席大法官罗伯茨及三位自由派大法官，裁定密西西比州允许选举日后到达邮寄选票的宽限期不违背联邦关于选举日的成文法。18个州和领地，多数由民主党主导，设有类似宽限期，在2026年11月中期选举前得到了维持。
  > "最高法院以5比4裁决拒绝共和党对密西西比州法律的挑战，维持选举日后计票规定。"
  Source: https://www.supremecourt.gov/opinions/25pdf/24-1260_g3cn.pdf
- **NPR** (United States, en) — 
  Source: https://www.npr.org/2026/06/29/nx-s1-5815312/supreme-court-mail-ballot-grace-period-ruling
- **Fox News** (United States, en) — 
  Source: https://www.foxnews.com/politics/supreme-court-rules-mail-in-ballots-received-after-election-day
- **The Washington Post** (United States, en) — 
  Source: https://www.washingtonpost.com/politics/2026/06/29/supreme-court-rules-mail-in-ballots-arriving-after-election-day-can-be-counted/

### US broadcast outlet; most detailed account of the 5-4 split and Barrett's reasoning
- **CBS News** (United States, en) — CBS News reported the 5-4 ruling in Watson v. RNC, with Justice Barrett joining Chief Justice Roberts and the three liberal justices to hold that Mississippi's grace period for mail-in ballots arriving after Election Day does not conflict with the federal statute setting Election Day. Eighteen states and territories, mostly Democrat-led, have such grace periods, which are now upheld ahead of the November 2026 midterms.
  > "The Supreme Court upheld post-Election Day ballot counting in a 5-4 ruling, rejecting a GOP challenge to Mississippi's law."
  Source: https://www.cbsnews.com/news/supreme-court-mail-ballots-mississippi-law-watson-v-rnc/

## Across the graph
- Related: [[scotus-trump-slaughter-ftc-jun29]], [[scotus-trump-cook-fed-jun29]]
- Entities: Person:donald Trump, Far Right Mainstream, Refusing to Concede

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