Iranian officials are furious after the killing of nuclear scientist Mohsen Fakhrizadeh—widely considered the father of Iran's atomic program—last week.
"The new U.S. administration should reconsider its inhumane behaviors toward other countries," Iranian President Hassan Rouhani said.
Biden has vowed to restore the JCPOA, but some of Trump's actions are irreversible.
"Today the international community once again expressed support for multilateralism," Iran's Ambassador to the U.K. Hamid Baeidinejad said.
European diplomat Helga Maria Schmid said signatories aim to "ensure full implementation of the agreement despite current challenges."
"The limits of the Trump administration's highly unilateral and aggressive foreign policy are being exposed," an opinion column argued.
The situation with Iran has dramatically changed since the 2015 nuclear deal was inked.
All options must be on the table to counter the rogue Iranian regime.
The international community must bring the full force of law against the terrorist Iranian regime.
Europe should side with the U.S. and support "snapback" sanctions against Iran at the U.N.
"I don't know how true it is. But when there's such an allegation, can a wise man trust you?" Ayatollah Ali Khamenei tweeted.
Ayatollah Ali Khamenei suggested Washington does not want his regime's "religious democracy" to succeed.
"Instead of caving, Iran is moving step by step out of the nuclear deal and in recent months it hit six ships, attacked Saudi oil facilities and set fire to the U.S. embassy in Baghdad," Chris Wallace pointed out.
Both the U.S. and Iran have said they will no longer adhere to the Obama-era Joint Comprehensive Plan of Action.
The Hawaii congresswoman and Democratic presidential candidate said Trump is "putting all Americans in greater danger."
Johnson's comments to Iran's president came after Trump urged European allies, as well as Russia and China, to withdraw from the 2015 treaty.
"This moment right now is on Barack Obama, not Donald Trump," Fox News contributor Pete Hegseth said.
"I hate this," Rand Paul said, arguing that the situation with Iran was much better under the nuclear deal.
The Obama administration sanctioned Soleimani in 2011 over his involvement in a plan to assassinate a Saudi diplomat in Washington, D.C.
Robert Malley argued that Trump's policies towards Iran have put Americans "more at risk than they were before" he came into office.
Retired U.S. Ambassador John Limbert warned that President Trump had "no plan" and this could lead to a "disaster."
"In the world of politics, all things affect each other," Iran's foreign ministry spokesperson said Sunday.
An Iranian government spokesperson blamed the "bullying policy" of the U.S. and the "lack of resistance" by the Europeans,
The "maximum pressure" strategy's only effect was to make life miserable for Iran's civilian population, to prevent diplomacy and encourage U.S. allies like Saudi Arabia to act with greater bellicosity.
The energy secretary said Iran "could pay a very dear price economically" but added that Trump is "not interested in going to war."
Hamad bin Jassim bin Jabor al-Thani said Iranians won't crack under American economic pressure, and will look to play the long game instead.
Russian foreign minister Sergey Lavrov said American pressure on the Iran nuclear deal is designed to create a pretense for conflict.
Foreign Minister Javad Zarif gave an interview in New York City, where he is under tight visa restrictions, during a visit to the United Nations.
President Donald Trump said Sunday Iran had "better be careful" with its expansion of enriched uranium production.