The Trump administration, delaying an anticipated confrontation with Iran until the completion of a long-awaited policy review, plans to recertify Tehran’s compliance with the Obama-era nuclear deal, according to U.S. and foreign officials.

The recertification, due Monday to Congress, follows a heated internal debate between those who want to crack down on Iran now — including some White House officials and lawmakers — and Cabinet officials who are “managing other constituencies” such as European allies, and Russia and China, which signed and support the agreement, one senior U.S. official said.

As a candidate and president, Trump has said he would reexamine and possibly kill what he called the “disastrous” nuclear deal that was negotiated under President Barack Obama and went into effect in January last year. The historic agreement shut down most of Iran’s nuclear program, in some cases for decades, in exchange for an easing of international sanctions.

Under an arrangement Obama worked out with Congress, the administration must certify Iranian compliance with the terms of the accord every 90 days. If the administration denies certification, it can then decide to reinstitute sanctions that were suspended under the deal.