By Conor White

President Trump's decision to withdraw from the Iran nuclear deal makes it more difficult for the United States to negotiate a new understanding with Tehran, or any deal with other foreign governments, said Laura Secor, a journalist and author who has written extensively on Iran.

"The message not only is the United States is walking away from an agreement limiting the nuclear program in Iran, but that the United States is willing to walk away from its commitments negotiated under previous administrations" Secor said in an interview Wednesday with Cheddar.

Despite the White House's expressed confidence a better deal could be struck, Secor, author of "Children of Paradise: The Struggle for the Soul of Iran," said she doesn't see a way forward for another agreement with Iran.

"The Trump administration has not unveiled any Plan B here," she said. "There was talk they would get a bigger, better deal, but the idea that you would have a country whose commitment you have just abrogated agree to make a bigger, deeper, longer commitment to you, is delusional."

America's European allies, including France, which is a party to the Iran deal, have insisted the deal can survive even without the United States and have encouraged Iran to continue in good faith.

For the full interview, click here.