US President Donald Trump, who opposes the accord, has until May 12th to decide whether to abandon it or not.
European Union governments on Tuesday said the alleged revelations on Iran's nuclear program shared by Israel's Prime Minister Benjamin Netanyahu a day earlier bolstered the argument to maintain the accord ahead of a possible USA exit from the deal on May 12.
Israel's prime minister on Monday unveiled what he said was a "half ton" of Iranian nuclear documents collected by Israeli intelligence, claiming it proved that Iranian leaders covered up a nuclear weapons program before signing a deal with world powers in 2015.
"If there was a deal on the table that would actually prevent Iran from developing nuclear weapons, I'd be going house to house in the United States of America to basically beg people to accept it".
"The deal was made on a completely false pretense", said the White House press secretary, Sarah Huckabee Sanders.
On Tuesday Netanyahu told CNN that "nobody" sought a conflict with the Islamic Republic, a prospect seen by some as a possible result of the deal's collapse.
"It was pretty obvious that the speech had an audience of one: the president of the United States", said Ali Vaez, Iran project director for the International Crisis Group.
Netanyahu said in an elaborate televised presentation on Monday that he had new "proof" of an Iranian nuclear weapons plan that could be activated at any time.
But others argued it failed to show the nuclear accord was a "terrible deal", as Netanyahu called it, with some saying his presentation in fact furthered the case for the agreement.
But as nuclear proliferation expert Joshua Pollack writes for Defense One, Netanyahu "showed very little that we haven't already been told".
Hatami called Netanyahu's accusations "baseless". Scarborough said. "Because that information contradicts what Secretary of State [Mike] Pompeo said just a couple of weeks ago".
Russian Federation stood by the current deal, rejecting any push to update or change the JCPOA. "Blow up the deal and you're back there tomorrow!" said Kerry, who negotiated the pact.
"We think the biggest mistake was the Obama administration ever entering the deal that you referenced in the first place", she said.
"In 12 days a huge drama will unfold". "What the prime minister did was to give Trump ammunition against the European naiveté and unwillingness regarding Iran".
The White House blamed the shift in tense on a "clerical error". "To be clear, the US has lengthy identified that Iran had a strong, clandestine nuclear weapons program".
They were dishonest actors and so the deal that was made was made on things that were not accurate.
He said the files showed that Iran lied about never having a nuclear programme and lied to atomic inspectors, adding: "Work is continuing". "Iran has proven to the world it can not be trusted with any capability, so I hope moving forward the president will say this is what America wants to see".
Netanyahu said the files had been moved to a secret compound in Tehran in 2017 that looked dilapidated from the outside.