Aides to President Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE are reportedly preparing for a scenario in which Trump withdraws the U.S. from the Iran nuclear agreement next month.

Trump's national security team is considering strategies for pulling out of the multilateral agreement and reimposing the sanctions waived by the U.S., according to The Associated Press. The moves come ahead of Trump's May 12 deadline for key aspects of the deal to be renegotiated.

One option under consideration is an immediate reapplication of sanctions on Iran delayed by six months, the AP reported, giving allied nations time to consider new actions or help revise the deal that Trump has called "the worst deal ever negotiated."

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National security staffers are also considering whether to allow the European nations that co-signed the agreement to preserve it without U.S. involvement, officials told the news service.

The deal, a signature foreign policy achievement of the Obama administration signed between the U.S. and six other nations, lifted billions of dollars in sanctions in exchange for curbs on Tehran's nuclear program.

Trump decertified Iran's compliance with the agreement in January, but held off from pulling out of the deal in the hopes of improvements, including requirements for Tehran to halt its support of terrorist organizations.