Mississippi's solicitor general walked into the Supreme Court on Monday to defend his state's practice of counting mail-in ballots that arrive days after Election Day. He walked into a buzzsaw. And the justices who tried hardest to bail him out were the ones least likely to share his state's political leanings.
The case is Watson v. RNC, and it asks a deceptively simple question: Does federal law require that ballots in federal elections be received by Election Day, or can states keep accepting them for days afterward? Mississippi says its law, which allows mailed ballots to be counted up to five days after voting closes, so long as they carry an Election Day postmark, is perfectly fine. The Republican National Committee, the state Libertarian Party, and the Trump administration all say it isn't.
What unfolded during oral arguments, as the New York Post reported, was a rare spectacle: a skilled conservative lawyer, the same Scott Stewart who successfully argued Dobbs v. Jackson Women's Health in 2022, the case that struck down Roe v. Wade, struggling to hold his footing as justices from both wings peppered him with hypotheticals. And when the pressure mounted, it was the court's liberal justices who rushed to throw him a lifeline.
Justice Amy Coney Barrett pressed Stewart on whether states could allow voters to recall mailed ballots before Election Day, a question that seemed to probe the outer limits of state discretion over election mechanics. Stewart apparently had difficulty finding clean answers.
Then Justice Neil Gorsuch sharpened the blade. As the Washington Examiner reported, Gorsuch asked whether a state could allow a voter to film himself postmarking a ballot on Election Day, then have his brother, or "some aggregator of ballots", deliver it a week or three later.
"How about a time-stamp video showing that I voted on Election Day? Here I am filling out my ballot, and then my brother or maybe some aggregator of ballots brings it in a week or three later, that's got to be OK too, doesn't it?"
Stewart admitted he had "some concerns" about that scenario. That concession opened a door the conservative justices kept walking through. If Mississippi's theory is that Election Day only governs when the voter acts, not when the ballot arrives, where exactly is the limit?
That's when the rescue operation began. Justice Ketanji Brown Jackson, the court's newest member, and a justice who has drawn scrutiny for conduct including her appearance at the Grammy Awards, intervened to steer Stewart back on course. She told him the case was "not about a Mississippi practice or policy related to recalling ballots," and said she was "a little confused about those kinds of policy questions" that Barrett had raised.
Then Jackson went further. She told Stewart that the longtime practice of allowing states to run their own elections "actually is pointed in your favor." In other words: she was doing his job for him.
Justice Sonia Sotomayor jumped in next. After Stewart's stumble on the Gorsuch hypothetical, she pressed him with a question that Justice Samuel Alito openly identified as friendly fire, help, not hostility.
"If the state wants to make [a relative] a notary... a military officer, if it wants to make it a Supreme Court justice, if it wants to make it anyone, as long as it's done by Election Day, that's what's counts, correct?"
Alito, a conservative stalwart, told Stewart plainly that Sotomayor was "asking you what, I think, she intends to be a friendly question." The subtext was hard to miss: even a justice on the other side of the ideological aisle was trying to help Mississippi's lawyer find solid ground.
On the opposing side, the arguments were sharper and more direct. Paul Clement, representing the Libertarian Party of Mississippi, told the court that when Congress set the first Tuesday after the first Monday in November as a national Election Day back in 1845, it meant what it said. Voting wraps up that day. Period.
Clement offered his own hypothetical to drive the point home:
"If somebody in Gulfport the day after the election asks, 'Is the election over?' the common sense answer is, 'No it's not, the ballots are still coming in.' That reality gives the lie to the idea that we have a uniform national election day."
Fox News reported that Alito himself stressed the plain meaning of the phrase, saying, "If I have nothing more to look at than the phrase 'Election Day,' I think this is the day in which everything is going to take place, or almost everything." Clement reinforced that framing: "All agree that elections for federal office have to end on the day of the election specified by Congress."
Justices Clarence Thomas and Brett Kavanaugh also appeared to lean toward overturning the Mississippi law, a notable alignment given that Kavanaugh and Jackson have clashed publicly on other procedural questions before the court. If those two join Alito, Gorsuch, and Barrett, the five-vote majority writes itself.
The stakes stretch well beyond Mississippi. At least 14 other states, including California, New York, and Texas, have similar laws allowing ballots to arrive after Election Day. Nearly 30 states have some form of grace period for absentee ballots. Just The News noted that 14 states and the District of Columbia currently accept some ballots after Election Day, meaning a ruling against Mississippi could force a nationwide overhaul of mail-in ballot deadlines before the 2026 midterms.
The U.S. Court of Appeals for the 5th Circuit already sided with the RNC on this question. Now the Supreme Court will have the final word, with a decision expected by the end of June.
Jason Snead, executive director of the Honest Elections Project, framed the case in blunt terms. "Federal law clearly states that ballots must be received by Election Day," Snead told The Center Square. "The Supreme Court has a prime opportunity to keep it easy to vote and make it harder to cheat by upholding the rule of law and ensuring that 'Election Day' means Election Day."
The case arrives as President Trump pushes Congress to tighten restrictions on mail-in ballots and enact a proof-of-citizenship requirement for federal elections through the Safeguard American Voter Eligibility (SAVE) America Act. That legislation faces an uphill battle in the Senate, which makes the Supreme Court's ruling all the more consequential. If Congress can't act, the court may do the heavy lifting.
RNC Election Integrity Communications Director Ally Triolo issued a statement after Monday's arguments that captured the committee's position cleanly:
"Watson v. RNC is about a simple principle: ballots must be received by Election Day. This prevents elections from dragging on for days and weeks after voters have cast their ballots, causing confusion and undermining our elections."
Triolo added that "83 percent of voters agree ballots should be in by Election Day, and 78 percent say it makes elections more secure." Those numbers suggest the public is well ahead of the legal establishment on this question, and well ahead of the states still clinging to post-Election Day counting windows.
The conservative majority on the court has shown a willingness in recent terms to enforce plain statutory meaning against progressive legal theories, as seen in its rebuke of the Ninth Circuit over California's secret gender-transition policies and in its ruling siding with parents against another California statute. Watson v. RNC offers a chance to apply the same principle to the mechanics of democracy itself.
The most revealing dynamic Monday wasn't the legal arguments. It was the alignment. Mississippi sent a proven appellate advocate to defend its law, and he still couldn't hold the line under questioning from conservative justices. The liberal justices, Jackson and Sotomayor, stepped in to shore up his position, feeding him answers and reframing hostile questions as friendly ones.
That tells you something about where the ideological incentives actually lie. The left has spent years expanding mail-in voting and loosening ballot-receipt deadlines. When a red state's own lawyer couldn't defend those rules, the court's progressives did it for him. They weren't defending Mississippi. They were defending the infrastructure of late-arriving ballots that benefits their side of the aisle in election after election.
If "Election Day" doesn't mean the day ballots must be in, it doesn't mean much at all. Five justices appeared ready to say so. That would be a good start.
