WASHINGTON — US Ambassador to the United Nations Nikki Haley made the case today for President Donald Trump to not certify Iran’s compliance when the nuclear deal comes up for review next month, effectively tossing the issue back to Congress.

Speaking at the American Enterprise Institute, the neoconservative think tank that was a main cheerleader for regime change in Iraq, Haley argued that the 2015 nuclear deal was deeply flawed. She said it did not resolve a long list of other US grievances about Iran’s behavior, from its support for the Lebanese Shiite militia Hezbollah to its ballistic missile program.

“The truth is, the Iran deal has so many flaws that it’s tempting to leave it,” Haley said, while acknowledging that she did not know what Trump might do. “But the deal was constructed in a way that makes leaving it less attractive.”

Under the Iran Nuclear Agreement Review Act of 2015, the president must certify to Congress every 90 days that Iran is complying with the nuclear deal. If he doesn't, it's up to Congress to determine whether to reimpose nuclear-related sanctions that the United States agreed to suspend under the nuclear deal.