January 14, 2026
Back to all stories

Supreme Court Revives Rep. Bost’s Challenge to Illinois Law Counting Mail Ballots Received up to 14 Days After Election Day

In a 7–2 decision, the Supreme Court revived Rep. Mike Bost’s challenge, finding he has standing even though the late-arriving ballots likely did not affect his lopsided win. Bost targets an Illinois law that allows ballots postmarked by Election Day to be counted if received within 14 days, a rule used by more than a dozen states and D.C., and the Court said it will address this broader question this spring after the Trump administration weighed in supporting Bost.

Federal Courts and Elections Mail Voting and Election Law Election Law and Mail Voting U.S. Supreme Court

📌 Key Facts

  • The Supreme Court revived Rep. Mike Bost’s challenge to an Illinois law that allows counting mail ballots received up to 14 days after Election Day.
  • The Court’s order was 7–2.
  • The Court held that Bost has legal standing to bring the challenge even though the late-arriving ballots likely did not affect his lopsided victory.
  • Illinois’ statute permits counting ballots that are postmarked by Election Day if they are received within two weeks (14 days) after the election.
  • More than a dozen states, plus Washington, D.C., have similar rules allowing receipt of mail ballots after Election Day under certain conditions.
  • The Supreme Court will take up this broader constitutional question this spring — whether states may continue counting such late-arriving mail ballots.
  • The Trump administration filed a brief supporting Rep. Bost’s challenge.

📊 Relevant Data

In the 2020 Illinois presidential election, 266,417 mail-in ballots arrived after Election Day and were counted, representing 4.4% of all votes cast.

Federal lawsuit threatens validity of potentially tens of thousands of Illinois mail-in, military ballots — Chicago Tribune

In the 2020 U.S. election, 67% of Asian American voters used mail-in or absentee voting, compared to 51% of Hispanic voters, 45% of White voters, and 38% of Black voters; overall U.S. voting-age population in 2020 was approximately 60% non-Hispanic White, 19% Hispanic, 13% Black, and 6% Asian.

The voting experience in 2020 — Pew Research Center

In the 2020 U.S. election, voters aged 65 and older were more likely to vote by mail (55%) than voters aged 18-34 (44%), 35-49 (42%), or 50-64 (41%).

The voting experience in 2020 — Pew Research Center

In 2022 Texas primary, mail ballot rejection rates were over 16% for Black, Latino, and Asian voters compared to 12% for White voters, making non-White voters at least 30% more likely to have applications or ballots rejected; Texas population in 2022 was approximately 40% White, 40% Hispanic, 12% Black, 5% Asian.

Records Show Massive Disenfranchisement and Racial Disparities in 2022 Texas Primary — Brennan Center for Justice

U.S. active-duty military personnel in 2023 were 68% White (vs. 58.9% non-Hispanic White in U.S. population), 17.6% Black (vs. 13.6%), 19.5% Hispanic (vs. 19.1%), with an average age of 28.6 years and 82.3% male.

2023 Demographics Report — Military OneSource

📰 Source Timeline (2)

Follow how coverage of this story developed over time

January 14, 2026
5:08 PM
Supreme Court revives GOP congressman's challenge to late-arriving mail ballot law
PBS News by Associated Press
New information:
  • Confirms the Supreme Court’s vote count as 7–2 and that the Court held Rep. Mike Bost has standing even though late-arriving ballots likely did not affect his lopsided win.
  • Spells out that Illinois’ statute permits counting ballots postmarked by Election Day if received within two weeks, and notes that more than a dozen states plus D.C. have similar post-Election Day receipt rules.
  • Reports that the Court will take up the broader question this spring of whether states may continue counting such late-arriving mail ballots and that the Trump administration weighed in to support Bost.