President Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE blasted Iran over its most recent ballistic missile test on Saturday – his latest signal that he may choose not to certify Tehran's compliance with a 2015 deal aimed at curbing the country's nuclear ambitions.

"Iran just test-fired a Ballistic Missile capable of reaching Israel. They are also working with North Korea," he tweeted. "Not much of an agreement we have!"

Iran just test-fired a Ballistic Missile capable of reaching Israel.They are also working with North Korea.Not much of an agreement we have! — Donald J. Trump (@realDonaldTrump) September 23, 2017

The Trump administration faces an Oct. 15 deadline to say whether Iran is abiding by the terms of the Joint Comprehensive Plan of Action) JCPOA.

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Since taking office in January, Trump has twice certified that Iran is complying with the deal, which the U.S. must do every 90 days, despite railing against the agreement on the campaign trail.

But he has signaled more recently that he could choose not to certify Iran's compliance, paving the way for new sanctions against Tehran and threatening the future of the nuclear deal.

In his first speech before the United Nations General Assembly this week, Trump called the JCPOA "one of the worst and most one-sided transactions the United States has ever entered into" and referred to Iran as a "rogue nation."

Iranian President Hassan Rouhani has warned that Trump risks damaging the United States' international credibility if he withdrew from the nuclear deal.

In an act of defiance against the U.S., Iran said on Saturday that it had successfully tested a new ballistic missile capable of carrying several warheads.