Senate Majority Leader John Thune (R-SD) stated in a recent interview that he currently intends to seek a fifth term in office in 2028. While acknowledging recent public disagreements with President Donald Trump, Thune said his working assumption is that he will run for reelection. The senator noted that the outcome of upcoming November midterm elections could influence his final decision.
The remarks follow a period of public tension between the Senate leader and the president. Last week, President Trump declined to express full confidence in Thune’s leadership when questioned by reporters, stating he would "let you know" his views later. The two have disagreed over the SAVE America Act, an elections bill that Trump has pressured the Senate to pass by eliminating the filibuster, a move Thune said lacks sufficient support among Senate Republicans.
Inside the Capitol, some Republican senators have speculated that Thune might choose retirement over another term. Three GOP senators, speaking on condition of anonymity, suggested Thune might decide he has had enough of the current political environment. However, Sen. Mike Rounds (R-SD) spoke in support of Thune, stating that South Dakota voters respect him and would support a 2028 bid. Thune previously considered retirement before the 2022 midterms but ultimately ran and won with nearly 70 percent of the vote.
South Dakota voters and political donors would notice the impact of this decision through the presence or absence of a high-profile incumbent on the 2028 ballot. Currently, Thune is focused on the 2026 midterms, where the outcome will determine if he remains Majority Leader or becomes Minority Leader. A change in his status would directly affect his ability to advance state-specific priorities, such as the farm bill, which local analysts say is a primary concern for South Dakota's agricultural sector.
The situation sets a precedent for how Senate leadership interacts with the executive branch under pressure. The knock-on effects include the potential for primary challenges, as some conservative activists have suggested recruiting a challenger to Thune. What happens next depends on the November 2026 midterm elections and the subsequent secret-ballot leadership elections, where Thune will seek to maintain his role as the top Senate Republican for the next two years. Currently, Thune says he remains in communication with the president regarding policy issues.