President Trump said Friday he would refuse to certify Iran’s compliance with an international nuclear deal, calling on Congress to toughen the United States’ stance toward Iran. Trump reportedly wanted to withdraw the U.S. completely from the seven-nation agreement, but was talked out of it by Defense Secretary James Mattis and other members of his Cabinet. This is U.S. Ambassador to the United Nations Nikki Haley, speaking on NBC’s “Meet the Press” Sunday.

Nikki Haley: “Well, I think right now you’re going to see us stay in the deal, because what we hope is that we can improve the situation. And that’s the goal. So I think right now we’re in the deal to see how we can make it better, and that’s the goal. It’s not that we’re getting out of a deal. We’re just trying to make the situation better, so that the American people feel safer.”

Trump’s move to undermine the Iran nuclear deal drew fire from U.S. allies, who said it increased the threat of war and made it far more likely Iran could develop nuclear weapons. In Tehran, President Hassan Rouhani condemned President Trump’s decision.

President Hassan Rouhani: “Manners and attitude have great importance. President Trump’s speech was full of falsehoods, unfair insults, lies and fake accusations against the great Iranian nation. … Iran is not a nation that will yield to forceful talking and hateful speeches from a dictator. The Iranian nation will not surrender to any nation.”