Washington -- Donald Trump announced Tuesday he is quitting the Iran nuclear deal.

"I am announcing today that the United States will withdraw from the Iran nuclear deal," Trump said from the White House.

"It is clear to me that we cannot prevent an Iranian nuclear bomb under the decaying and rotten structure of the current agreement," he said. "The Iran deal is defective at its core. If we do nothing we know exactly what will happen."

"The so-called Iran deal was supposed to protect the United States and our allies from the lunacy of an Iranian nuclear bomb, a weapon that will only endanger the survival of the Iranian regime," the President said. "In fact, the deal allowed Iran to continue enriching uranium and over time reach the brink of a nuclear breakout."

The President added: "Today, we have definitive proof that this Iranian promise was a lie."