A lawyer has told Newsweek that Trump attempting to take a third term as president will throw the U.S. into a constitutional crisis.

Newsweek sought email comment from the office of Attorney General Pam Bondi on Monday.

In a phone interview with NBC News on March 30, Trump said there were methods that would allow him to serve a third term and added that he was "not joking."

Such a move could cause major instability in the U.S. as the 22nd amendment prohibits any president from serving more than two terms.

During the NBC interview, Trump said of a potential third term: "A lot of people want me to do it. But, I mean, I basically tell them we have a long way to go, you know; it's very early in the administration.

"I'm focused on the current," he said.

Asked if wanted a third term, Trump replied: "I like working."

"I'm not joking. But I'm not—it is far too early to think about it."

Former federal prosecutor Neama Rahmani told Newsweek that such a move could cause major political instability.

"Politically, Trump doesn't have the votes to repeal the 22nd Amendment, either in Congress or the states. I would expect even the conservative Supreme Court to enforce the ban on a third term."