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Part of: Musgrave v. Mace (2:25-cv-01823-RMG) · The 2026 South Carolina Senate Special Election · January 6 & the Trump Relationship · 2026 Governor Campaign

Dispatch

Trump endorses Lindsey Graham's sister for a full Senate term, and puts Nancy Mace's decision in a harder box

President Trump endorsed Sen. Darline Graham Nordone for a full six-year term on July 17, 2026, the same day Axios reported that Rep. Nancy Mace is still considering a Senate bid despite the endorsement. The move closes the appointment lane Mace had been eyeing and forces a choice: run against Trump's chosen candidate in a primary where she trails at 10 percent, or stand down. This dispatch catalogs the full timeline, from Mace's 'I would be an idiot not to at least look at it' media tour on July 12, to her team's viability polling, to the Emerson poll showing her tied for third at 10 percent, to Trump's endorsement of Graham's sister.

Official portrait of Rep. Nancy Mace
Photo: U.S. House of Representatives. Source

President Donald Trump endorsed Sen. Darline Graham Nordone, Lindsey Graham's sister, who was appointed to his seat as interim senator, for a full six-year term on July 17, 2026, the same day multiple outlets reported that Rep. Nancy Mace is still considering a run despite the endorsement.

The endorsement, first reported by NBC News and amplified by Trump's social media account, effectively closes the appointment lane Mace had been publicly weighing since Graham's death on July 11. It also puts her in a harder political box: run against Trump's chosen candidate in a primary where she already trails at 10 percent, or concede the race before filing opens.

What Trump said

Trump's statement, as quoted by Resist the Mainstream and confirmed by NBC News:

"I asked Darline, for the Good of our Nation, to run for the U.S. Senate in the Special Republican Primary on Tuesday, August 11, 2026. She has my Complete and Total Endorsement."

The endorsement came the same day Axios reported that Mace and Rep. Ralph Norman are both still considering bids. InteractivePolls summarized the dynamic: "Reps. Nancy Mace (R-S.C.) and Ralph Norman (R-S.C.) are both still considering bids for the U.S. Senate despite President Trump endorsing Darline Graham Nordone for a full six-year term."

The full timeline: from "I would be an idiot not to" to Trump's endorsement

July 12, Mace's media tour

The day after Graham's death, Mace appeared on CBS News, Fox News, and CNN in a single Sunday, and her answer on whether she would run kept moving:

  • On CBS News, she opened in mourning: "We're stunned. Nobody thought this could happen anytime soon."
  • At 9:43 AM ET, she posted a Godfather meme to X: "Just when I thought I was out... they pull me back in..."
  • On Fox News, she left the door open: "I'm never going to shut the door. I love the state of South Carolina. You only live once." And: "I would be an idiot not to at least look at it."
  • Back on CBS, she went further: "I would be remiss if I didn't at least consider it." She also revealed she had texted Gov. McMaster about the succession, telling him "perhaps he should appoint himself as the interim senator."
  • On CNN that afternoon, the door appeared to close, and then not quite: "We can't afford to lose any seats in the House. I'm not pursuing it." Then: "There will be time to decide. You know, do I want to look at this race or not?"

Every line is verbatim from her July 12 appearances, cataloged in full in Maceopedia's earlier dispatch.

July 12, Axios: Mace's team plans viability polling

The same day, Axios reported that Mace was "strongly considering" a run. Two sources familiar with her thinking told Axios she was looking at the race; one described the mood as "YOLO," and another said her team planned to put a viability poll in the field on Monday, the first concrete sign that Mace's camp was treating the race as a live option worth testing.

July 12, Trump allies signal they can block her

The same morning, Politico's Meredith Lee Hill reported that Trump allies were saying they could "block Rep. Nancy Mace" from the seat. Political Wire surfaced the same line in a sharper appointment frame, with Trump allies privately pointing to Mace's public clashes with the president.

Trump himself called into NBC's Meet the Press that morning and said he already had a preferred replacement, without naming the person: "I have somebody that I think would be great."

The full account of the Trump-world counter-signal is in Maceopedia's earlier dispatch.

July 13, Prediction markets price Mace near the floor

The day after Mace's media tour, prediction markets across Kalshi, Polymarket, Manifold, and PredictIt were pricing Mace as a long-shot:

  • Kalshi: 3 cents in the special-primary contract
  • Polymarket: 0.05 percent in a nominee-specific market; 0.15 percent in a replace-Graham market
  • Manifold: about 1.4 percent
  • PredictIt: 10 cents, but with a stale order book

As Maceopedia's dispatch put it: "The headline chatter is one thing. The market board is colder."

July 15, Timmons says he won't support Mace

Rep. William Timmons, a close ally of the late Graham, told Fox Carolina that it "rubbed me the wrong way" that within 24 hours of Graham's death, colleagues were already signaling interest. He said he could not support Mace or Norman, pointing out that both had run for governor in June and lost.

Mace's response, captured on video: "So he can go fly a kite."

The full exchange is in Maceopedia's dispatch.

July 16, Emerson poll: Mace at 10 percent, tied for third

The first traditional poll taken after Graham's death, an Emerson College Polling survey for Nexstar Media fielded July 14 to 15, put Mace at 10 percent, tied for third with Lt. Gov. Pamela Evette. The full ballot test of 500 South Carolina likely Republican primary voters:

  • Rep. Ralph Norman: 16%
  • Mark Lynch: 13%
  • Rep. Nancy Mace: 10% (tied for third)
  • Lt. Gov. Pamela Evette: 10%
  • Rep. Russell Fry: 9%
  • Gov. Henry McMaster: 8%
  • Sen. Darlene Graham Nordone: 6%
  • Former Gov. Mark Sanford: 5%
  • Someone else: 5%
  • Undecided: 18%

Emerson's executive director Spencer Kimball framed the result: "No candidate begins as a clear favorite among voters to replace the late Senator."

The poll was first reported by Newsweek and The Hill. The full breakdown is in Maceopedia's dispatch.

July 17, Trump endorses Graham's sister

Trump's endorsement of Nordone is the second signal from his orbit that Mace is not welcome in the Senate race, and this time it is not an anonymous "Trump ally" but the president himself, on the record, with a named candidate.

What it means for Mace

The endorsement changes the calculus across every lane Mace might have considered:

The appointment lane is closed. Gov. Henry McMaster already appointed Nordone as interim senator. Trump's endorsement of her for a full term makes it politically costly for McMaster to reverse course.

The primary lane is uphill. Mace is at 10 percent in the Emerson poll, tied for third. Trump's endorsement typically adds 10-15 points for the endorsed candidate in Republican primaries. Nordone was at just 6 percent in that poll, before Trump's endorsement. A Trump-backed Nordone could easily jump past Mace and into the top tier.

The polling her team commissioned, the viability poll Axios reported her team putting in the field on July 13, would have landed around the same time as the Emerson survey. If Mace's internal numbers look anything like the public Emerson numbers, the case for running is hard to make.

Filing closes July 28. Mace has until then to decide whether to file for the special primary. She has not announced as of this writing.

The pattern: Mace vs. Trump, again

The endorsement is the latest chapter in a relationship that has shifted repeatedly. Mace endorsed Trump in 2024 and campaigned with him. But she has also:

  • Voted to release the Epstein files, which she later said cost her Trump's support in the governor primary, writing that she "chose wrong if the goal was winning an election."
  • Broke with Trump on Iran in March 2026, telling Axios the Iran war needed to end and signaling she would vote with Democrats on a war powers resolution.
  • Called for Graham to be removed from the Situation Room in the same period, arguing he had been wrong on Iraq, Afghanistan, and Iran.
  • Finished fifth in the June 2026 Republican primary for governor, a race Trump did not endorse her in.

Trump's endorsement of Nordone is consistent with that pattern: he is backing the candidate most closely associated with Graham's legacy and the establishment lane, not the candidate who has publicly challenged him.

What comes next

The special Republican primary is August 11, 2026. Candidate filing opens July 21 and closes July 28. Mace has said she is "not a candidate for anything" while also refusing to rule out a run. Her response to Timmons, "So he can go fly a kite", suggests she is not easily pressured out of the race.

But the evidence against a run has accumulated rapidly in six days:

  1. Her own team commissioned a viability poll (Axios, July 12)
  2. Trump allies signaled they could block her (Politico, July 12)
  3. Prediction markets priced her near zero (July 13)
  4. A fellow South Carolina Republican said he cannot support her (Timmons, July 15)
  5. The first public poll put her at 10 percent, tied for third (Emerson/Newsweek, July 16)
  6. Trump endorsed Graham's sister for a full term (July 17)

Whether Mace files by July 28 will be the first test of how she reads that math.

Sources & related coverage

This dispatch catalogs public reporting and Trump's own public statement. It does not predict Mace's decision. Filing closes July 28, 2026.

Trump endorses Lindsey Graham's sister for a full Senate term, and puts Nancy Mace's decision in a harder box: image 1