The defence secretary, James Mattis, said this week that staying with the deal, under which Iran accepted strict curbs on its nuclear programme in exchange for sanctions relief, was in United States national security interests.
"The Iranian regime supports terrorism and exports violence, bloodshed and chaos across the Middle East".
"It's a durable, long-term solution to the Iranian nuclear issue, which gives all sides the necessary assurances that they need", Mogherini had previously said about the deal.
According to authorities, Trump will roll out a broader and stringent US strategy on Iran. And if Trump argues that Iran is not in compliance, that could cause an American withdrawal from the worldwide pact.
Leading officials in the defence sector he said that in the future he expects them to "a wide spectrum of military options... at a much faster pace".
Ahead of that deadline, several officials familiar with White House deliberations said Trump has made it clear he does not want to certify Iran's compliance.
He asked the press: "You know what that means?"
If Trump, who has called the accord "the worst deal ever negotiated", does not recertify it by October 16, Congress has 60 days to decide whether to reimpose sanctions suspended under the accord.
"Maybe it's the calm before the storm", POTUS replied.
Trump posed for a photo with first lady Melania Trump alongside uniformed military leaders and their spouses on October 5 at the White House state dining room, the Daily Mail reported.
When a reporter asked the meaning of it, he said, "You'll find out".
The comment came following a meeting between Trump and military leaders, during which both Iran and North Korea were reportedly discussed.
But the sources warned that Trump could change his mind, and the White House would not confirm any plans for a speech or any such decision.