The passing of Republican Sen. Lindsey Graham has left South Carolina with only one sitting senator, trimmed the Republican Party’s working majority in the U.S. Senate, and set in motion two separate political processes: the appointment of a temporary replacement and the selection of a new GOP candidate for the November election.
Graham, who was 71 years old, died on Saturday after returning from a trip to Ukraine. A preliminary finding from the Office of the Chief Medical Examiner in Washington determined that he suffered an aortic dissection — a tear in the wall of the body’s main artery — linked to arteriosclerotic cardiovascular disease. That finding is still considered preliminary while additional testing is completed.
The day before he died, Graham had met with Ukrainian President Volodymyr Zelenskyy in Kyiv to discuss Ukraine’s air-defense needs and potential sanctions against Russia. His death removes one of Washington’s most vocal Republican advocates for both Ukraine and Israel, and leaves unfinished a sanctions bill targeting Moscow that he had been developing alongside Democratic Sen. Richard Blumenthal.
Graham had been on the ballot for reelection on November 3. His current six-year term was set to end on January 3, 2027, and he had already secured the Republican nomination for a fifth term after winning South Carolina’s June 9 primary. He had been scheduled to face Democratic nominee Dr. Annie Andrews in the fall.
South Carolina now faces two distinct decisions: who will serve out the remaining months of Graham’s current term, and who will replace him on the Republican ballot for the next six-year term.
Who Names Graham’s Temporary Replacement?
Under the 17th Amendment to the U.S. Constitution, states may allow their governors to make temporary Senate appointments when a seat becomes vacant due to death, resignation, or expulsion. Not all states use this system — some do not permit standard gubernatorial appointments at all.
South Carolina does give its governor that authority. Republican Gov. Henry McMaster is therefore expected to name someone to fill the seat through January 3, 2027. That appointee may choose to run for the full term, but simply being appointed does not hand them the Republican nomination.
As of Monday morning, no announcement had been made. McMaster could choose someone who plans to compete in the upcoming primary — giving that person both incumbency status and immediate Senate access — or he could pick a caretaker who agrees not to seek the seat long-term.
South Carolina Republicans are expected to hold a special primary on August 11. Candidate filing is set to open July 21, and if no candidate receives a majority, a runoff would follow on August 25. The winner would then face Andrews and any other qualifying candidates in November.
South Carolina has become a reliably Republican state, meaning the eventual GOP nominee would enter the general election as the frontrunner. However, Graham’s death introduces more uncertainty than would exist with an established incumbent on the ballot.
The tight timeline could also create logistical headaches. Federal law generally requires states to send ballots to military and overseas voters at least 45 days before a federal election, leaving officials very little time to prepare ballots following a potential August 25 runoff.
Do All States Handle Senate Vacancies the Same Way?
No. The rules governing Senate vacancies vary widely from state to state.
The 17th Amendment leaves it to each state legislature to decide whether its governor can make a temporary appointment. In most states, the governor can appoint someone who serves until a special or regularly scheduled election fills the seat. Some states require the appointee to belong to the same party as the senator who left, while others require the governor to choose from a list submitted by that party. A smaller number of states simply leave the seat empty until voters elect a successor.
South Carolina does not appear to have a same-party requirement, though there is virtually no possibility that McMaster — a committed Republican — would appoint a Democrat or independent.
What Happens When a House Member Dies?
House vacancies work differently. The Constitution requires that every vacant House seat be filled through an election. A governor cannot appoint a temporary representative, even if a congressional district goes without a voting member for several months.
Instead, the governor calls a special election under state law. Until the winner is sworn in, the former representative’s office typically continues offering limited constituent services under the oversight of the House clerk.
This difference reflects the original design of the Constitution: senators were once chosen by state legislatures and serve six-year terms, while House members have always been directly elected and serve two-year terms.
Who Is Gov. Henry McMaster?
Henry McMaster, 79, is a traditional Southern conservative and a close ally of President Donald Trump. He previously served as South Carolina’s attorney general and lieutenant governor before becoming governor in 2017, when then-Gov. Nikki Haley joined the Trump administration.
During the 2016 Republican primary, McMaster was among the earliest prominent elected officials to endorse Trump. He has generally aligned with Trump on immigration, taxes, abortion, judicial appointments, and disputes between the federal government and states.
McMaster is not typically associated with the party’s libertarian wing or with anti-establishment conservatives who built careers by challenging Republican leadership from the right. He is better described as a conventional establishment conservative who aligned himself early and firmly with Trump.
The governor is term-limited, and South Carolina Attorney General Alan Wilson recently won the Republican nomination to succeed him.
McMaster was also a personal ally of Graham and had agreed, along with Sen. Tim Scott, to co-chair his reelection campaign. That relationship could lead him toward appointing someone who broadly shares Graham’s national-security outlook rather than someone who rose to prominence by attacking Graham from the right. That said, this remains an inference — the governor has not publicly stated any criteria for the appointment.
Who Might McMaster Appoint?
As of Monday, McMaster had not announced his pick, and any firm prediction would be premature.
Names being discussed include Lt. Gov. Pamela Evette and Republican Reps. Russell Fry, Nancy Mace, and Ralph Norman. The vacancy comes just weeks after a competitive Republican gubernatorial primary left several prominent conservatives with statewide campaign organizations and unmet political ambitions.
Mace, who lost that primary, is reportedly weighing a run for the Senate seat. Norman has also been mentioned but would need to consider the impact of leaving his House seat while Republicans hold a narrow majority. Rep. Joe Wilson has indicated he is not interested in either the appointment or the nomination.
Fry represents a safely Republican district and has close ties to Trump’s political network. Evette has already run statewide and would allow McMaster to appoint the first woman to represent South Carolina in the Senate, though her recent primary loss could work against her.
McMaster could opt for a neutral caretaker, allowing primary voters to pick the long-term nominee without any candidate having an incumbency advantage. Alternatively, he could appoint the person he and Trump would prefer to see win in August.
A Republican appointment is considered a near-certainty. Trump has suggested he has a preferred candidate in mind but has not publicly named that person.
Does Graham’s Death Change Who Controls the Senate?
Not by itself.
Before Graham’s death, Republicans held 53 Senate seats. Democrats held 45, and two independents caucused with them. The vacancy drops formal Republican membership to 52, while the Democratic-aligned bloc remains at 47. McMaster’s appointment will likely restore the split to 53-47.
The party’s practical voting margin is narrower, however, because Kentucky Republican Sen. Mitch McConnell is also absent from Washington while recovering from a serious fall and hospitalization. With Graham’s seat empty and McConnell unavailable, Republicans may have only 51 members able to vote against 47 in the Democratic-aligned bloc.
That is still enough to win on party-line votes, but it gives Senate leaders less room for defections. The tighter margin could affect confirmation votes, budget negotiations, defense spending, and efforts to advance the Russia-sanctions legislation Graham had championed.
Partisan control would only change if McMaster did something politically unthinkable and appointed a non-Republican.
What Do We Know About McConnell’s Condition?
McConnell, 84, was hospitalized after falling at his Washington home on June 14 and briefly losing consciousness. His office and physician reported that testing found no concussion, fracture, stroke, or heart attack. Doctors later identified mild pneumonia, which responded to antibiotics.
After several weeks of public silence, McConnell released a statement Sunday along with a photograph of himself with his wife, Elaine Chao. He acknowledged that longstanding mobility issues had contributed to several falls over the past year.
A childhood case of polio left McConnell with a permanent impairment in his left leg. He has experienced multiple falls in recent years, including one in 2023 that resulted in a concussion and a fractured rib.
McConnell has since left the hospital for an inpatient rehabilitation facility, where he is undergoing intensive physical therapy to rebuild strength and lower the risk of another fall. He says he is “regaining” strength but is not yet able to return to Washington or cast votes. No timeline has been given for his return.
He has not been seen publicly since his June hospitalization but says he remains engaged in Senate and Kentucky matters through his staff and conversations with colleagues.
Claims that McConnell is in a coma, brain-dead, or secretly deceased are not supported by any available evidence. Early emergency dispatch reports referencing an unconscious person or a possible cardiac arrest helped fuel speculation, but such reports do not constitute medical diagnoses. No independently released medical record allows the public to verify every detail provided by his office.
McConnell has said he intends to complete his term, which ends January 3, 2027, and had previously announced he would not seek reelection. The available evidence points to serious physical frailty and an uncertain recovery — not any publicly established cognitive incapacity.
Why Can’t McConnell Simply Be Declared Incapacitated?
Congress has no equivalent of the 25th Amendment.
That amendment provides a process for transferring presidential authority when a president is unable to carry out the duties of the office. No comparable constitutional mechanism exists for senators or House members. A physician, governor, party leader, or group of colleagues cannot declare a senator incapacitated and install a replacement.
McConnell’s seat remains legally occupied unless he resigns, dies, or is expelled. His inability to attend votes — even over an extended period — does not by itself create a vacancy.
The Senate can expel a member by a two-thirds vote. In theory, that power could be used against someone permanently unable to serve. In practice, expulsion has historically been used as punishment for serious misconduct or disloyalty, not as a response to illness, and it has never been invoked solely because of incapacity.
The chamber could theoretically try to address an extraordinary case through its constitutional rulemaking and disciplinary authority, but no established procedure, medical standard, or neutral body exists to determine that a senator can no longer serve. Attempting to create such a process for one member would almost certainly trigger major constitutional and partisan battles.
One unusual precedent from the House dates to 1981, when that chamber declared the seat of Maryland Rep. Gladys Noon Spellman vacant after she suffered a heart attack, fell into a coma, and was unable to take the oath of office for a new term. Spellman never regained consciousness and died in 1988, nearly eight years after the heart attack. That episode remains the only time the House has vacated a seat due to a member’s physical or mental inability to serve, and it does not establish a clear procedure for the Senate.
McConnell could choose to resign voluntarily, which would trigger Kentucky’s vacancy law. But neither the governor nor Senate Republican leaders can force him to step aside simply because another senator would be more reliably present for votes.
The constitutional system is well-suited to replacing lawmakers who have died but poorly equipped to handle living members who can no longer carry out their duties. McConnell’s condition may prevent him from returning to regular Senate work, but the information made public so far provides no legal basis for declaring his seat vacant.
