The Democratic Party’s sweeping midterm victory has put two of the US Supreme Court’s most influential conservative justices, Clarence Thomas and Samuel Alito, under renewed scrutiny, with questions mounting over whether they will remain on the bench as Republicans lose their grip on the Senate.
With Democrats set to take control of the chamber in January, President Donald Trump could face a significant obstacle in securing confirmation for any Supreme Court nominee should a vacancy arise. The political shift has intensified speculation about the future of the court’s conservative majority, particularly given the advanced ages of Thomas, 78, and Alito, 76.
The US Constitution gives the Senate the authority to confirm presidential judicial appointments. A Democratic-controlled Senate could therefore prevent Trump from filling vacancies, potentially leaving the court’s existing ideological balance untouched for years.
Neither justice has publicly indicated an immediate intention to retire. Thomas has offered no public signal of stepping down, while Alito said last month that he intended to remain on the bench through the current nine-month judicial term, which began in October.
Both justices have been central figures in the court’s conservative bloc and have consistently supported Trump’s policies in major rulings during his second presidency. Their continued presence has helped sustain the court’s 6-3 conservative majority, which has reshaped American law on abortion, gun rights and presidential authority.
Retirement speculation meets political reality
The prospect of an early retirement had gained traction among conservative circles before the election, with some hoping the justices would leave while Republicans still controlled the Senate, allowing Trump to appoint successors.
However, the narrow window before Democrats formally assume control on January 3 could complicate any such move. The outgoing Republican majority would have to navigate a packed legislative calendar while attempting to confirm a nominee.
Legal experts also question whether either justice would be willing to make a retirement decision so closely tied to the political fortunes of a president.
Cornell Law School professor Michael Dorf said justices often consider the political landscape when contemplating retirement, but rarely acknowledge doing so publicly.
Without a serious health emergency, Dorf suggested, an imminent departure by Thomas or Alito would appear overtly political — a move he considers unlikely.
Florida Governor Ron DeSantis, who unsuccessfully sought the Republican presidential nomination in 2024, expressed pessimism about the party’s prospects, writing on social media that the chances of Trump securing a successor for either justice were effectively zero.
Republicans could face years without a Senate majority
The Democratic Senate victory could have consequences extending well beyond Trump’s current term. Some analysts believe Republicans may struggle to reclaim the chamber in 2028, potentially leaving future Republican presidents unable to appoint Supreme Court justices until the party regains control of the Senate.
Ed Whelan, a legal analyst at the Ethics and Public Policy Center and former Justice Department official under President George W. Bush, said even a Republican victory in the 2028 presidential election might not be enough to secure judicial appointments.
He suggested Republicans could remain locked out of Senate control until 2033.
If that scenario materialises, Thomas would be 84 and Alito 82 when the next Congress takes office. Both would be well beyond the average retirement age of roughly 80 for Supreme Court justices since 2000.
The prospect has prompted anxiety among conservative legal commentators, who see the Senate results as a potential threat to the long-term durability of the court’s ideological balance.
Health concerns remain limited
There are no publicly known major health problems affecting either justice, although both have experienced medical issues in recent years.
Alito was treated for dehydration in March after becoming ill at an event in Philadelphia. Thomas missed Supreme Court arguments in 2022 after being hospitalised with flu-like symptoms.
The possibility of a vacancy through death has also weighed on the political calculations surrounding the court. Three Supreme Court justices have died while serving this century.
Conservative Chief Justice William Rehnquist died in 2005 at 80, Justice Antonin Scalia died in 2016 at 79, and liberal Justice Ruth Bader Ginsburg died in 2020 at 87.
The political consequences of those vacancies remain deeply embedded in the court’s history.
After Scalia’s death, Senate Republicans refused to consider President Barack Obama’s nominee, leaving the seat vacant until Trump took office. Following Ginsburg’s death, Republicans moved swiftly to confirm Amy Coney Barrett, cementing the court’s current 6-3 conservative majority.
Ginsburg’s decision to remain on the bench during Obama’s presidency, rather than retire and allow a successor to be appointed, was widely criticised by liberals after the court’s ideological balance shifted sharply to the right.
Conservative voices sound the alarm
The latest election results have prompted pointed reactions from conservative legal figures, many of whom fear that a prolonged Democratic Senate majority could prevent Trump — and potentially a future Republican president — from reshaping the court.
Ilya Shapiro, a senior fellow and director of constitutional studies at the Manhattan Institute, suggested Republicans could remain out of power in the Senate until 2032, adding that Thomas and Alito would need to maintain their health.
Josh Hammer, a Newsweek podcaster and former judicial clerk, also made a pointed reference to the justices’ longevity, expressing hope that both had strong health insurance.
For conservatives, the election has created an uncomfortable reality: the future of the Supreme Court’s ideological majority may depend less on presidential elections and more on how long its two oldest members remain on the bench.
