U.S. President Donald Trump has reignited speculation about a potential third presidential term, telling NBC News in a Sunday interview that he is “not joking” about the idea, even as the U.S. Constitution bars any president from serving more than two terms.

“It is far too early to think about it,” Trump added, while refusing to rule out a future bid that would require a constitutional amendment or legal reinterpretation of presidential term limits.

Trump, who was sworn in for a second non-consecutive term on January 20, has made past comments teasing the idea of a third run, often in a tone that critics saw as intentionally provocative. Asked how he could pursue a third term under the current constitutional limits, Trump said vaguely there were “methods,” but declined to elaborate.

The 22nd Amendment, ratified in 1951 following Franklin D. Roosevelt’s four-term presidency, explicitly limits presidents to two terms. Repealing it would require a two-thirds majority in both the House and Senate, and ratification by three-quarters of the states—an extremely high bar.

Despite the constitutional roadblocks, some of Trump’s allies have floated the idea of extending his time in office. Longtime adviser Steve Bannon recently said efforts are underway to challenge the amendment’s interpretation. “We’re working on it,” Bannon said in a March 19 interview.

If Trump were to run again in 2028, he would be 82 at the time of inauguration—matching the age President Joe Biden was at the start of his most recent term.

Though there are no formal legal mechanisms currently allowing a third term, Trump’s comments suggest the issue may not be off the table entirely, raising alarms among legal scholars and political opponents alike.