President Donald Trump reiterated that the United States is prepared to launch a major attack on Iran if a deal is not reached by his Tuesday 8:00 p.m. Eastern Time deadline, according to comments relayed by Fox News host Bret Baier following a direct conversation with the president.

Baier said he had just spoken with Trump, who declined to assign probabilities to a diplomatic outcome but emphasized that the deadline would be enforced. “I just got off the phone with the president…he called and I said, ‘Listen, if you were to put odds on it, what were the odds that this is going to end up being a negotiated deal?’ He said he wasn’t going to put odds on it, but he said 8:00 p.m. is happening. That’s what he said. He said, ‘If we get to that point, there is going to be an attack like they have not seen,’” Baier said.

According to Baier, Trump added that a breakthrough remains possible if talks advance quickly. “If negotiations move forward today and there is something concrete, that could change. But, at this hour, he didn’t want to put odds on it, but he said it is moving forward with the plans that we have.”

Earlier, Trump issued a stark warning on Truth Social, suggesting catastrophic consequences if Iran refuses his terms. “A whole civilization will die tonight, never to be brought back again,” Trump wrote. “I don’t want that to happen, but it probably will.”

He also indicated that regime change could alter the outcome, writing: “However, now that we have Complete and Total Regime Change, where different, smarter, and less radicalized minds prevail, maybe something revolutionarily wonderful can happen, WHO KNOWS? We will find out tonight, one of the most important moments in the long and complex history of the World. 47 years of extortion, corruption, and death, will finally end. God Bless the Great People of Iran!”

On Monday, Trump reaffirmed that the deadline for reaching an agreement remains unchanged and warned of severe consequences if it is not met. “The entire country [of Iran] can be taken out in one night, and that night might be tomorrow night” Trump said.

His remarks followed Iran’s rejection of a proposed temporary ceasefire. Tehran demanded an end to the war contingent on several conditions, including a halt to regional conflicts, guarantees for safe passage through the Strait of Hormuz, reconstruction of damaged infrastructure, and the lifting of all sanctions.

Iranian officials later dismissed Trump’s warnings, asserting that the United States had suffered setbacks in the conflict and criticizing the president in harsh terms. A spokesman for Iran’s Armed Forces Central Headquarters said, “The rude, insolent, and baseless threats of the delusional US President will not make up for the humiliation and disgrace of the United States in the West Asia region.”