President Donald Trump said Sunday that “I’m not joking” about trying to serve a third term, the clearest indication he is considering ways to breach a constitutional barrier against continuing to lead the country after his second term ends at the beginning of 2029.

“There are methods which you could do it,” Trump said in a telephone interview with NBC News from Mar-a-Lago, his private club.

He elaborated later to reporters on Air Force One from Florida to Washington that “I have had more people ask me to have a third term, which in a way is a fourth term because the other election, the 2020 election was totally rigged.” Trump lost that election to Democrat Joe Biden.

Still, Trump added: “I don’t want to talk about a third term now because no matter how you look at it, we’ve got a long time to go.”

The 22nd Amendment, added to the Constitution in 1951 after President Franklin D. Roosevelt was elected four times in a row, says “no person shall be elected to the office of the President more than twice.”

Any attempt to remain in office would be legally suspect and it is unclear how seriously Trump might pursue the idea. The comments nonetheless were an extraordinary reflection of the desire to maintain power by a president who had violated democratic traditions four years ago when he tried to overturn the election he lost to Biden.

“This is yet another escalation in his clear effort to take over the government and dismantle our democracy,” said a statement from Rep. Daniel Goldman, a New York Democrat who served as lead counsel for Trump’s first impeachment. “If Congressional Republicans believe in the Constitution, they will go on the record opposing Trump’s ambitions for a third term.”

Steve Bannon, a former Trump strategist who runs the right-wing “War Room” podcast, called for the president to run again during a speech at the Conservative Political Action Conference last month.

Gallup data shows President George W. Bush reaching a 90% approval rating after the attacks on Sept. 11, 2001. His father, President George H.W. Bush, hit 89% following the Gulf War in 1991.

Trump has maxed out at 47% in Gallup data during his second term, despite claiming to be “in the high 70s in many polls, in the real polls.”

Trump has mused before about serving longer than two terms before, generally with jokes to friendly audiences.