"We've got to be tougher on Iran and we've got to fix the flaws in the deal", Johnson told Fox News.
By May 12 the world should have an answer to the question that has been roiling global politics: is Donald Trump going to pull the U.S. out of the Iran nuclear agreement?
He said President Trump should object to the deal's sunset clause - which automatically lifts most key restrictions by 2030 - arguing it would allow Iran to "go forward fast with enrichment programs that could lead to a nuclear weapon".
Showers and thunderstorms, high near 78 — TODAY'S FORECAST
On Sunday , a relatively weak low pressure system will miss us to the south ushering in some rain showers. This will sling clouds and a few afternoon showers our way, not to mention some cooler temperatures.
Trump has been the subject of an intense lobbying effort by American allies to maintain the agreement, with British Foreign Minister Boris Johnson making a last-ditch appeal to the administration in a visit to Washington this week.
Trump and Netanyahu say the archive, stowed secretly in a warehouse by top Iranian officials and undeclared to the UN's International Atomic Energy Agency despite being required by the deal to disclose all their past nuclear work, reveals Tehran's true intentions under the 2015 accord - and that its entry into the agreement was based on "lies".
Boris Johnson, the British Foreign Secretary, has warned that an arms race could develop in the Middle East if the United States backs out of the Iranian nuclear agreement. "We'll deal with the (U.S.) decision but like Jean-Yves said, we want to adhere to this agreement", Maas added.
France, Germany and Britain have for weeks been campaigning to keep the deal alive and have been negotiating since January with the U.S.to find ways to convince Trump to keep to the accord.